{"id":10115,"date":"2025-11-13T10:11:51","date_gmt":"2025-11-13T10:11:51","guid":{"rendered":"https:\/\/allin.online\/standard\/seddi-a-byrddau\/"},"modified":"2026-10-19T14:18:08","modified_gmt":"2026-10-19T14:18:08","slug":"seddi-a-byrddau","status":"publish","type":"standard","link":"https:\/\/allin.online\/cy\/standard\/amgylchedd-adeiledig\/bwyd-diod-a-manwerthu\/seddi-a-byrddau\/","title":{"rendered":"Seddi a Byrddau"},"content":{"rendered":"\n<div class=\"wp-block-ace-standard-fixed-content flex content-content bg_white padding indent two-column\"><div class=\"content_wrapper\"><h3 id=\"page_sub_nav\" class=\"mobile_only\">6.02 Seddi a Byrddau<\/h3><select aria-labelledby=\"page_sub_nav\" class=\"mobile_only\" id=\"nav_select\"><option value=\"#overview\">Trosolwg<\/option><option value=\"#examples\">Enghreifftiau ymarferol<\/option><option value=\"#key_considerations\">Ystyriaethau allweddol<\/option><option value=\"#definitions_list\">Diffiniadau ac acronymau<\/option><option value=\"#learning_resources\">Adnoddau dysgu<\/option><option value=\"#linked_standards\">Safonau cysylltiedig<\/option><option value=\"#references\">Cyfeiriadau allanol<\/option><\/select><div class=\"action_links mobile_only\"><a href=\"https:\/\/form.jotform.com\/252393341563356?standard=Amgylchedd Adeiledig 6.02 Seddi a Byrddau\" class=\"feedback_link button bg_secondary white\">Rhowch adborth i ni ar y Safon hon<\/a><a href=\"https:\/\/allin.online\/cy\/standard\/amgylchedd-adeiledig\/\" class=\"return_link\">Yn \u00f4l i Amgylchedd Adeiledig<\/a><\/div>\n<div id=\"overview\" class=\"wp-block-ace-standard-overview standard-content\"><h3>Trosolwg<\/h3>\n<p class=\"wp-block-paragraph\">Mae ardaloedd bwyd a diod yn lleoedd pwysig i ymwelwyr a staff ymgynnull a mwynhau eich lleoliad. Fodd bynnag, gallant fod yn heriol i bobl ag anghenion mynediad lywio.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bydd dewis dodrefn hygyrch a&#8217;u lleoli&#8217;n feddylgar yn sicrhau bod y mannau hyn yn gweithio i amrywiaeth ehangach o ymwelwyr.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mae&#8217;r Safonau&#8217;n seiliedig ar egwyddorion o <span title=\"Dogfen Gymeradwy M (ADM)\" data-definition-name=\"Approved Document M ADM\" data-definition=\"dogfen-gymeradwy-m-adm\" data-definition-id=\"9511\" class=\"ace-definition-inserter\"><\/span>, <span data-definition=\"dogfen-canllawiau-technegol-m-tgd-m\" title=\"Dogfen Canllawiau Technegol M (TGD M)\" data-definition-name=\"Technical Guidance Document M (TGD M)\" data-definition-id=\"9807\" class=\"ace-definition-inserter\"><\/span>, a <span title=\"BS8300\" data-definition-name=\"BS8300\" data-definition=\"bs8300\" data-definition-id=\"8521\" class=\"ace-definition-inserter\"><\/span>. Maen nhw&#8217;n canolbwyntio ar egwyddorion dylunio allweddol i ddefnyddwyr i sicrhau y:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>gall pobl ddewis sedd neu fwrdd sy&#8217;n diwallu eu hanghenion mynediad<\/li>\n\n\n\n<li>mae&#8217;n ddiogel ac yn gyfforddus i ymwelwyr a staff symud rhwng y dodrefn<\/li>\n\n\n\n<li>mae&#8217;n syml i berchnogion <span data-definition=\"ci-cymorth\" data-definition-id=\"9543\" title=\"Ci cymorth\" data-definition-name=\"Assistance dog\" class=\"ace-definition-inserter\"><\/span> ddod \u00e2&#8217;u ci i&#8217;ch lle<\/li>\n\n\n\n<li>mae pawb yn teimlo&#8217;n gartrefol ac yn cael eu hystyried yn eich hardaloedd bwyd a diod<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Mae&#8217;n bwysig fod eich dewis o seddi a byrddau yn cyd-fynd yn agos \u00e2&#8217;r manylebau yn y canllaw hwn. Os yw pobl yn ei chael hi&#8217;n anodd eistedd a mwynhau pryd o fwyd neu ddiod, ni fyddant yn teimlo&#8217;n gartrefol. Gallai hyn eu gwneud yn llai tebygol o ddychwelyd i&#8217;ch lleoliad.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mae&#8217;r Safon hon yn cwmpasu seddi a byrddau mewn ardaloedd bwyd, diod a lolfa. Am seddi mewn amgylcheddau artistig neu fannau digwyddiadau eraill, gweler <a href=\"https:\/\/allin.online\/cy\/standard\/amgylchedd-adeiledig\/amgylcheddau-artistig\/seddi\/\">Amgylchedd Adeiledig 4.01 Seddi<\/a>.<\/p>\n<\/div>\n\n\n\n<div id=\"examples\" class=\"wp-block-ace-standard-examples bg_grey inner-padding standard-examples\"><h3>Enghreifftiau ymarferol<\/h3>\n<div class=\"wp-block-ace-standard-example standard-example\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-ace-image content-image alt-block\"><figure class=\"fill block-image alt-block\"><img decoding=\"async\" src=\"https:\/\/allin.online\/wp-content\/uploads\/2025\/11\/ACE-All-In-6535-scaled.jpg\" alt=\"Empty cafe area with well-spaced tables and chairs, level access and a choice of seating. \"\/><button class=\"toggle_modal\" aria-controls=\"lightbox_6499\" aria-expanded=\"false\" data-modal_id=\"lightbox_6499\"><span class=\"screen-reader-text\">Zoom into the image<\/span><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"31.999\" height=\"31.994\"><g fill=\"#fff\"><path d=\"M13.648 27.287a13.579 13.579 0 0 0 8.168-2.718l7.425 7.425 2.758-2.758-7.425-7.425a13.644 13.644 0 1 0-10.925 5.477Zm0-23.389a9.748 9.748 0 1 1-6.89 2.855 9.737 9.737 0 0 1 6.89-2.853Z\" class=\"zoom_svg__has_white\" data-name=\"Path 1776\"><\/path><path d=\"M11.701 19.49h3.9v-3.894h3.9v-3.9h-3.9v-3.9h-3.9v3.9h-3.9v3.9h3.9Z\" class=\"zoom_svg__has_white\" data-name=\"Path 1777\"><\/path><\/g><\/svg><\/button><div class=\"alt_block\"><button class=\"alt_trigger\" aria-label=\"Amgen\">Amgen<\/button><div class=\"alt_modal\" id=\"image_block_6499\" role=\"dialog\" aria-label=\"Alt text\" aria-describedby=\"desc_image_block_6499\"><p id=\"desc_image_block_6499\">Empty cafe area with well-spaced tables and chairs, level access and a choice of seating. <\/p><button class=\"close\">Cau <span class=\"screen-reader-text\">Amgen<\/span><\/button><\/div><\/div><div id=\"lightbox_6499\" class=\"lightbox modal\" aria-hidden=\"true\" tabindex=\"-1\"><div class=\"lightbox-content\"><button class=\"close\" aria-controls=\"lightbox_6499\"><span class=\"screen-reader-text\">Close zoomed image<\/span>\u00d7<\/button><img decoding=\"async\" src=\"https:\/\/allin.online\/wp-content\/uploads\/2025\/11\/ACE-All-In-6535-scaled.jpg\" alt=\"Empty cafe area with well-spaced tables and chairs, level access and a choice of seating. \"\/><\/div><\/div><\/figure><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-ace-content-blocks border-top\">\n<div class=\"wp-block-ace-intro content-intro\"><p><strong>Disgrifiad o&#8217;r ddelwedd:<\/strong> Mae gan yr ardal gaffi hon ddewis o seddi ar wahanol uchderau. Mae byrddau symudol, y rhan fwyaf ohonynt \u00e2 digon o le oddi tanynt fel y gall defnyddwyr cadeiriau olwyn fynd yn agos at y bwrdd. Mae lle o dan neu wrth ymyl y byrddau i <span title=\"Ci cymorth\" data-definition-name=\"Ci cymorth\" data-definition=\"ci-cymorth\" data-definition-id=\"9543\" class=\"ace-definition-inserter\"><\/span>  eistedd neu orwedd. Mae&#8217;r byrddau wedi&#8217;u gosod gyda digon o le rhyngddynt i ymwelwyr a staff symud o gwmpas yr ystafell yn ddiogel tra bod pobl yn eu defnyddio.<\/p><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-ace-standard-example standard-example\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-ace-image content-image alt-block\"><figure class=\"fill block-image alt-block\"><img decoding=\"async\" src=\"https:\/\/allin.online\/wp-content\/uploads\/2025\/11\/ACE-All-In-2841-scaled.jpg\" alt=\"A group of people including a wheelchair user sit at a table in an ornate Victorian tearoom with a woodblock floor.\u00a0\"\/><button class=\"toggle_modal\" aria-controls=\"lightbox_6496\" aria-expanded=\"false\" data-modal_id=\"lightbox_6496\"><span class=\"screen-reader-text\">Zoom into the image<\/span><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"31.999\" height=\"31.994\"><g fill=\"#fff\"><path d=\"M13.648 27.287a13.579 13.579 0 0 0 8.168-2.718l7.425 7.425 2.758-2.758-7.425-7.425a13.644 13.644 0 1 0-10.925 5.477Zm0-23.389a9.748 9.748 0 1 1-6.89 2.855 9.737 9.737 0 0 1 6.89-2.853Z\" class=\"zoom_svg__has_white\" data-name=\"Path 1776\"><\/path><path d=\"M11.701 19.49h3.9v-3.894h3.9v-3.9h-3.9v-3.9h-3.9v3.9h-3.9v3.9h3.9Z\" class=\"zoom_svg__has_white\" data-name=\"Path 1777\"><\/path><\/g><\/svg><\/button><div class=\"alt_block\"><button class=\"alt_trigger\" aria-label=\"Amgen\">Amgen<\/button><div class=\"alt_modal\" id=\"image_block_6496\" role=\"dialog\" aria-label=\"Alt text\" aria-describedby=\"desc_image_block_6496\"><p id=\"desc_image_block_6496\">A group of people including a wheelchair user sit at a table in an ornate Victorian tearoom with a woodblock floor.\u00a0<\/p><button class=\"close\">Cau <span class=\"screen-reader-text\">Amgen<\/span><\/button><\/div><\/div><div id=\"lightbox_6496\" class=\"lightbox modal\" aria-hidden=\"true\" tabindex=\"-1\"><div class=\"lightbox-content\"><button class=\"close\" aria-controls=\"lightbox_6496\"><span class=\"screen-reader-text\">Close zoomed image<\/span>\u00d7<\/button><img decoding=\"async\" src=\"https:\/\/allin.online\/wp-content\/uploads\/2025\/11\/ACE-All-In-2841-scaled.jpg\" alt=\"A group of people including a wheelchair user sit at a table in an ornate Victorian tearoom with a woodblock floor.\u00a0\"\/><\/div><\/div><\/figure><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-ace-content-blocks border-top\">\n<div class=\"wp-block-ace-intro content-intro\"><p><strong>Disgrifiad o&#8217;r ddelwedd: <\/strong>Mae defnyddiwr cadair olwyn yn eistedd wrth fwrdd caffi gyda gr\u0175p o gydweithwyr. Mae digon o le o amgylch y bwrdd i symud, ac mae lle rhwng y byrddau fel y gall pobl symud yn hawdd drwy&#8217;r ystafell.<\/p><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div id=\"key_considerations\" class=\"wp-block-ace-standard-key-considerations standard-key-considerations standard-content\"><h3>Ystyriaethau allweddol<\/h3>\n<h4 class=\"wp-block-ace-heading\">Cynllun<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Gwnewch yn si\u0175r eich bod yn cadw llwybr o leiaf 1200mm o led fel y gall pobl symud rhwng y byrddau. Dylai lled eich llwybr ganiat\u00e1u ar gyfer y ffaith y bydd pobl yn eistedd ar y naill ochr a&#8217;r llall.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Lle mae gofod yn caniat\u00e1u, darparwch ardaloedd bwyta unigol, gan y gall synau sy&#8217;n gysylltiedig \u00e2 bwyta ac yfed achosi pryder neu orlwytho synhwyraidd i rai.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dylai&#8217;r cadeiriau fod yn hawdd eu symud. Os yw&#8217;r llawr yn arwyneb caled, rhowch badiau ar draed cadeiriau a choesau bwrdd i leihau synau crafu sydyn, annisgwyl. Cofiwch, os yw byrddau neu gadeiriau wedi&#8217;u gosod ar y llawr, na fydd rhai pobl yn gallu eu cyrraedd. Darparwch leoedd i bobl storio offer symudedd tra byddant yn defnyddio&#8217;r gofod.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dylai pob dodrefn gyferbynnu&#8217;n weledol \u00e2&#8217;r amgylchoedd.<\/p>\n\n\n\n<h4 class=\"wp-block-ace-heading\">Nodweddion dylunio<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Darparwch amrywiaeth o uchderau ac arddulliau cadeiriau. Dylai rhai cadeiriau gynnwys breichiau a chymorth cefn. Defnyddiwch gmhorthion cefn uchel ar seddi ar hyd llwybrau cylchrediad neu eiliau i atal cyffwrdd damweiniol. Bydd hyn yn cael ei groesawu gan bobl sydd \u00e2 sensitifrwydd i gyffwrdd. Dylai unrhyw seddi sefydlog gynnwys lle i osod traed o dan ymyl y sedd, i gefnogi cydbwysedd wrth wthio i ffwrdd wrth godi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cynigiwch amrywiaeth o uchderau bwrdd. Gwnewch yn si\u0175r bod o leiaf 700mm o le clir oddi tano, rhwng y llawr a phen y bwrdd. Osgowch fyrddau \u00e2 choesau, fframiau, neu seiliau sy&#8217;n rhwystro mynediad, fel byrddau arddull pedestal. Mae hyn yn helpu defnyddwyr cadeiriau olwyn i ddod yn agosach at y bwrdd ac yn rhoi lle i <span title=\"Ci cymorth\" data-definition-name=\"Assistance dog\" data-definition=\"ci-cymorth\" data-definition-id=\"9543\" class=\"ace-definition-inserter\"><\/span> orwedd oddi tano.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bydd rhai pobl yn pwyso ar fwrdd i gael cymorth wrth godi a gostwng, felly gwnewch yn si\u0175r bod y byrddau&#8217;n sefydlog.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Byddwch yn ymwybodol o ymylon miniog a gorchuddiwch nhw os oes angen.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Os yn bosibl, cynhwyswch fannau gwefru wrth fyrddau neu gerllaw fel y gall ymwelwyr ailwefru dyfeisiau cynorthwyol.<\/p>\n<\/div>\n\n\n\n<div id=\"specification_table\" class=\"wp-block-ace-specification-table bg_white specification_table hide\"><h3>Safonol &#8211; manylebau<\/h3><div class=\"bg_grey inner-padding\"><table class=\"specification-table\"><tbody><\/tbody><\/table><\/div><\/div>\n\n\n\n<div id=\"influencing_accessible_practice\" class=\"wp-block-ace-standard-influencing-accessible-practice standard-influencing-accessible-practice standard-content hide\"><h3>Dylanwadu ar arfer hygyrch<\/h3>\n<h4 class=\"wp-block-ace-heading\"><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n<\/div>\n\n\n\n<div id=\"definitions_list\" class=\"wp-block-ace-definitions-list bg_white\"><h3>Diffiniadau ac acronymau<\/h3><div class=\"ace-definitions-list bg_grey inner-padding\"><div class=\"ace-definition-item\"><h4>BS8300<\/h4><div><p>Mae hyn yn cyfeirio at \u201cBS 8300:2018 Dylunio amgylchedd adeiledig hygyrch a chynhwysol\u201d. Mae\u2019n god ymarfer a ddarperir gan y Sefydliad Safonau Prydeinig. Tra bo ADM yn rhan o reoliadau adeiladu, mae BS8300 yn safon arferion gorau.<\/p>\n<\/div><\/div><div class=\"ace-definition-item\"><h4>Ci cymorth<\/h4><div><p>Ci gwaith sydd wedi cael ei hyfforddi&#8217;n drylwyr i gynorthwyo unigolyn anabl neu rywun \u00e2 chyflwr meddygol hirdymor.\u00a0Gallai c\u0175n cymorth gynnwys c\u0175n tywys sy&#8217;n tywys pobl ddall, c\u0175n clywed sy&#8217;n cynorthwyo pobl fyddar neu g\u0175n rhybudd meddygol a all rybuddio eu perchnogion am ddigwyddiadau meddygol sydd ar y gorwel, neu eu hatgoffa i gymryd meddyginiaeth.<\/p>\n<\/div><\/div><div class=\"ace-definition-item\"><h4>Dogfen Canllawiau Technegol M (TGD M)<\/h4><div><p>Yn cyfeirio at \u2018<a href=\"https:\/\/www.gov.ie\/en\/department-of-housing-local-government-and-heritage\/publications\/technical-guidance-document-m-access-and-use\/\">Technical Guidance Document M (Ireland) Access and Use<\/a>\u2019, sy&#8217;n helpu i sicrhau y gall pobl gael mynediad at adeiladau a&#8217;u cyfleusterau.<\/p>\n<\/div><\/div><div class=\"ace-definition-item\"><h4>Dogfen Gymeradwy M (ADM)<\/h4><div><p>Mae hyn yn cyfeirio at \u201cDdogfen Gymeradwy M: Mynediad i adeiladau a\u2019u defnyddio, Cyfrol 2\u201d. Fe\u2019i hadwaenir weithiau fel Rhan M a dyma\u2019r prif reoliad adeiladu yn Lloegr i sicrhau bod pobl yn gallu cael mynediad i adeiladau a\u2019u cyfleusterau a\u2019u defnyddio.<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n<div id=\"learning_resources\" class=\"wp-block-ace-standard-learning-resources standard-content\"><h3>Adnoddau dysgu<\/h3><div class=\"links-on-newtab-text\"><\/div>\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.thenbs.com\/PublicationIndex\/documents\/details?Pub=BSI&amp;DocID=320547\" target=\"_blank\" rel=\"noreferrer noopener\">BS8300 &#8211; Part 2 (Dolen allanol yn Saesneg)<\/a>(Gellir prynu safonau&nbsp;BSI ar-lein. Mae cop\u00efau cyfeirio ar gael mewn llyfrgelloedd lleol)\n<ul class=\"wp-block-list\">\n<li>Tudalen 40, Adran 4.13-4.16<\/li>\n\n\n\n<li>Tudalennau 66-67, Adran 15.1-15.1.1<\/li>\n\n\n\n<li>Tudalennau 159-163, Adran 20.6-20.8<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><a href=\"https:\/\/www.bsigroup.com\/en-IE\/insights-and-media\/insights\/brochures\/pas-6463-design-for-the-mind-neurodiversity-and-the-built-environment\/\" target=\"_blank\" rel=\"noreferrer noopener\">PAS6463:2022 Neurodiversity &amp; the Built Environment \u2013 BSI (Dolen allanol yn Saesneg)<\/a>\u00a0\n<ul class=\"wp-block-list\">\n<li>Tudalen 43, Adran 8.2.1, seddi \u00e2 chefn uchel\u00a0<\/li>\n\n\n\n<li>Tudalen 52, Adran 10.2, lleihau s\u0175n cefndir\u00a0<\/li>\n\n\n\n<li>Tudalen 110, Adran A.4.5, misoffonia\u00a0<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div id=\"skills_development\" class=\"wp-block-ace-standard-skills-development standard-skills-development standard-content hide\"><h3>Datblygu cymorth a sgiliau<\/h3>\n<h4 class=\"wp-block-ace-heading\"><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n<\/div>\n\n\n\t<div id=\"linked_standards\" class=\"wp-block page-links wp-block-ace-linked-standards \">\n\t\t\t<h3 class=\"block-title\">\n\t\t\t\tSafonau cysylltiedig\t\t\t<\/h3>\n\t\t\t\t\t\t<div class='flex flex_50 link_blocks'>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"flex_item post_item bg_grey--dark\">\n\t\t\t\t\t\t\t<picture class=\"featured-img alt-block\">\n\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/allin.online\/wp-content\/uploads\/2025\/11\/ACE-All-In-153-1024x683.jpg\" class=\"attachment-large size-large wp-post-image\" alt=\"Gr\u0175p o aelodau&#039;r gynulleidfa yn eistedd mewn awditoriwm theatr yn edmygu eu golygfa. Mae un person yn defnyddio lle i gadair olwyn.\" srcset=\"https:\/\/allin.online\/wp-content\/uploads\/2025\/11\/ACE-All-In-153-1024x683.jpg 1024w, https:\/\/allin.online\/wp-content\/uploads\/2025\/11\/ACE-All-In-153-300x200.jpg 300w, https:\/\/allin.online\/wp-content\/uploads\/2025\/11\/ACE-All-In-153-768x512.jpg 768w, https:\/\/allin.online\/wp-content\/uploads\/2025\/11\/ACE-All-In-153-1536x1024.jpg 1536w, https:\/\/allin.online\/wp-content\/uploads\/2025\/11\/ACE-All-In-153-2048x1365.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t<div class = \"alt_block\">\n\t\t\t\t\t\t\t\t\t<button class=\"alt_trigger\" aria-label=\"Open the Image Description\">Amgen<\/button>\n\t\t\t\t\t\t\t\t\t<div class=\"alt_modal\" id=\"6171\" role=\"dialog\" aria-label=\"Image Description\" aria-describedby=\"desc_10110\">\n\t\t\t\t\t\t\t\t\t\t<p id=\"desc_10110\">Gr\u0175p o aelodau&#8217;r gynulleidfa yn eistedd mewn awditoriwm theatr yn edmygu eu golygfa. Mae un person yn defnyddio lle i gadair olwyn.<\/p>\n\t\t\t\t\t\t\t\t\t\t<button class=\"close\">Cau <span class=\"screen-reader-text\">Disgrifiad Delwedd\n<\/span><\/button>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/picture>\n\t\t\t\t\t\t\t<div class=\"linked_standard--content inner-padding card\">\n\t\t\t\t\t\t\t\t<h4>4.01 Seddi<\/h4>\n\t\t\t\t\t\t\t\t<p>Darparwch amrywiaeth o opsiynau, gan gynnwys mannau hygyrch i gadeiriau olwyn a seddi i gydymaith i gynorthwyo ymwelwyr i deimlo&#8217;n gyfforddus a phrofi&#8217;r digwyddiad. <a href=\"\/login\" class=\"locked card_target\"><span aria-hidden=\"true\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"14.999\" height=\"18\" viewBox=\"0 0 14.999 18\">\n  <path id=\"unlock\" d=\"M13.507,7.5H3.75V5.249A3.741,3.741,0,0,1,11.022,4l1.133-1.133a5.234,5.234,0,0,0-9.9,2.378V7.5H1.493A1.5,1.5,0,0,0,0,9V16.5A1.5,1.5,0,0,0,1.493,18H13.507A1.5,1.5,0,0,0,15,16.5V9a1.5,1.5,0,0,0-1.492-1.5\" transform=\"translate(0)\" fill=\"#472961\" fill-rule=\"evenodd\"\/>\n<\/svg><br \/>\n<\/span>This content is only available to logged in users.<\/a><\/p>\n\t\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"31.832\" height=\"24\" viewBox=\"0 0 31.832 24\">\n  <path id=\"arrow\" d=\"M33.728,24.848l-10.2-10.2a1.773,1.773,0,1,0-2.508,2.508l7.189,7.189H4.272a1.772,1.772,0,0,0,0,3.545H28.178L21.022,35.08a1.755,1.755,0,0,0,0,2.508,1.827,1.827,0,0,0,1.271.536,1.747,1.747,0,0,0,1.271-.536L33.8,27.355a1.827,1.827,0,0,0,.536-1.271,2.283,2.283,0,0,0-.6-1.237Z\" transform=\"translate(-2.499 -14.123)\" fill=\"#472961\"\/>\n<\/svg>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\n\n\t<div id=\"references\" class=\"wp_block references wp-block-ace-standard-references \">\n\t\t<h3 class=\"block-title\">\n\t\t\tCyfeiriadau allanol\t\t<\/h3>\n\n\t\t<div class=\"links-on-newtab-text\"><\/div>\n\t\t<ol class=\"references-list\">\n\t\t\t\t\t\t\t<li class = \"references-list-item\"><p>British Standards Institute, BS8300-2:2018, Design of an accessible and inclusive built environment, Part 2: Buildings \u2013 Code of practice (2018). BSI standards can be purchased online. Reference copies are available at local libraries.<\/p>\n<\/li>\n\t\t\t\t\t<\/ol>\n\t<\/div> \n<\/div><aside class=\"sidebar flex-item\"><h3>6.02 Seddi a Byrddau<\/h3><nav class=\"sub-nav\"><ul><li><a href=\"#overview\">Trosolwg<\/a><\/li><li><a href=\"#examples\">Enghreifftiau ymarferol<\/a><\/li><li><a href=\"#key_considerations\">Ystyriaethau allweddol<\/a><\/li><li><a href=\"#definitions_list\">Diffiniadau ac acronymau<\/a><\/li><li><a href=\"#learning_resources\">Adnoddau dysgu<\/a><\/li><li><a href=\"#linked_standards\">Safonau cysylltiedig<\/a><\/li><li><a href=\"#references\">Cyfeiriadau allanol<\/a><\/li><\/ul><\/nav><div class=\"hide fixed scroll_menu\" aria-live=\"polite\"><h3>6.02 Seddi a Byrddau<\/h3><ul><li><a href=\"#overview\">Trosolwg<\/a><\/li><li><a href=\"#examples\">Enghreifftiau ymarferol<\/a><\/li><li><a href=\"#key_considerations\">Ystyriaethau allweddol<\/a><\/li><li><a href=\"#definitions_list\">Diffiniadau ac acronymau<\/a><\/li><li><a href=\"#learning_resources\">Adnoddau dysgu<\/a><\/li><li><a href=\"#linked_standards\">Safonau cysylltiedig<\/a><\/li><li><a href=\"#references\">Cyfeiriadau allanol<\/a><\/li><\/ul><a href=\"https:\/\/form.jotform.com\/252393341563356?standard=Amgylchedd Adeiledig 6.02 Seddi a Byrddau\" class=\"feedback_link button bg_secondary white\">Rhowch adborth i ni ar y Safon hon<\/a><a href=\"https:\/\/allin.online\/cy\/standard\/amgylchedd-adeiledig\/\" class=\"return_link\">Yn \u00f4l i Amgylchedd Adeiledig<\/a><\/div><a href=\"https:\/\/form.jotform.com\/252393341563356?standard=Amgylchedd Adeiledig 6.02 Seddi a Byrddau\" class=\"feedback_link button bg_secondary white\">Rhowch adborth i ni ar y Safon hon<\/a><a href=\"https:\/\/allin.online\/cy\/standard\/amgylchedd-adeiledig\/\" class=\"return_link\">Yn \u00f4l i Amgylchedd Adeiledig<\/a><\/aside><\/div>\n","protected":false},"featured_media":6496,"parent":9972,"menu_order":2,"template":"","class_list":["post-10115","standard","type-standard","status-publish","has-post-thumbnail","hentry"],"acf":{"short_description":"Dewiswch ddodrefn hygyrch a'i osod gyda threfniadau hyblyg fel bod pawb yn teimlo eu bod yn cael croeso ac yn cael eu hystyried. ","make_visible_to_taster_account":false},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Seddi a Byrddau - All In<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/allin.online\/cy\/standard\/amgylchedd-adeiledig\/bwyd-diod-a-manwerthu\/seddi-a-byrddau\/\" \/>\n<meta property=\"og:locale\" content=\"cy_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Seddi a Byrddau - All In\" \/>\n<meta property=\"og:url\" content=\"https:\/\/allin.online\/cy\/standard\/amgylchedd-adeiledig\/bwyd-diod-a-manwerthu\/seddi-a-byrddau\/\" \/>\n<meta property=\"og:site_name\" content=\"All In\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-19T14:18:08+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/allin.online\/wp-content\/uploads\/2025\/11\/ACE-All-In-2841-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1707\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/allin.online\\\/cy\\\/standard\\\/amgylchedd-adeiledig\\\/bwyd-diod-a-manwerthu\\\/seddi-a-byrddau\\\/\",\"url\":\"https:\\\/\\\/allin.online\\\/cy\\\/standard\\\/amgylchedd-adeiledig\\\/bwyd-diod-a-manwerthu\\\/seddi-a-byrddau\\\/\",\"name\":\"Seddi a Byrddau - 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