{"id":1242,"date":"2025-10-30T21:19:13","date_gmt":"2025-10-30T21:19:13","guid":{"rendered":"https:\/\/www.lichtgitter.cz\/en\/?post_type=produkty&#038;p=1242"},"modified":"2026-02-24T12:11:27","modified_gmt":"2026-02-24T12:11:27","slug":"sp-and-p-stair-treads","status":"publish","type":"produkty","link":"https:\/\/www.lichtgitter.cz\/en\/blog\/produkty\/stair-treads\/sp-and-p-stair-treads\/","title":{"rendered":"SP and P stair treads"},"content":{"rendered":"\n<div class=\"wp-block-uagb-container uagb-block-e76db3b3 alignfull uagb-is-root-container\"><div class=\"uagb-container-inner-blocks-wrap\">\n<div class=\"wp-block-uagb-advanced-heading uagb-block-be28b32a\"><h2 class=\"uagb-heading-text\"><strong>Stair treads made of resistance-welded gratings SP and press-locked gratings P<\/strong><\/h2><\/div>\n\n\n\n<p><strong>Stair treads<\/strong>&nbsp;are manufactured&nbsp;<strong>in accordance with DIN 24531-1<\/strong>&nbsp;from both resistance-welded and press-locked gratings. For standard stair treads, load-bearing&nbsp;<strong>bars with dimensions 30 x 3 mm and 40 x 3 mm<\/strong>&nbsp;are used. A perforated anti-slip nosing edge is welded on the front side of the treads, which not only reduces the risk of slipping, but also increases the static load capacity of the tread and visually highlights its front edge. The treads are fitted with 3 mm thick side plates with holes for bolts. Standard tread dimensions are also supplied with an alternative side plate design &#8211; see images (more info in the attachment below). Tread dimensions and hole spacing in the side plate are shown in the following table.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-uagb-container produkt-2-cols uagb-layout-grid uagb-block-385640b1 alignfull uagb-is-root-container\"><div class=\"uagb-container-inner-blocks-wrap\">\n<div class=\"wp-block-uagb-info-box uagb-block-063da87b uagb-infobox__content-wrap  uagb-infobox-icon-above-title uagb-infobox-image-valign-top\"><div class=\"uagb-ifb-content\"><div class=\"uagb-ifb-image-content\"><img decoding=\"async\" src=\"https:\/\/www.lichtgitter.cz\/en\/wp-content\/uploads\/sites\/4\/2025\/10\/Schod_SP_s_alternativ_bocnici-1.jpg\" alt=\"\" width=\"\" height=\"0\" loading=\"lazy\"\/><\/div><div class=\"uagb-ifb-title-wrap\"><h3 class=\"uagb-ifb-title\"><strong>Stair tread SP<\/strong><\/h3><\/div><p class=\"uagb-ifb-desc\">left with alternative side plate design&nbsp;&nbsp;<\/p><\/div><\/div>\n\n\n\n<div class=\"wp-block-uagb-info-box uagb-block-f038d99a uagb-infobox__content-wrap  uagb-infobox-icon-above-title uagb-infobox-image-valign-top\"><div class=\"uagb-ifb-content\"><div class=\"uagb-ifb-image-content\"><img decoding=\"async\" src=\"https:\/\/www.lichtgitter.cz\/en\/wp-content\/uploads\/sites\/4\/2025\/10\/Schod_P_s_alternativ_bocnici-1.jpg\" alt=\"\" width=\"\" height=\"0\" loading=\"lazy\"\/><\/div><div class=\"uagb-ifb-title-wrap\"><h3 class=\"uagb-ifb-title\"><strong>&nbsp;&nbsp;&nbsp;Stair tread P<\/strong><\/h3><\/div><p class=\"uagb-ifb-desc\">left with alternative side plate design&nbsp;<\/p><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-uagb-container uagb-block-f543e5d9 alignfull uagb-is-root-container\"><div class=\"uagb-container-inner-blocks-wrap\">\n<div class=\"wp-block-uagb-advanced-heading uagb-block-e6453bbb\"><h2 class=\"uagb-heading-text\">Standard dimensions of stair treads:<\/h2><\/div>\n\n\n\n<figure class=\"wp-block-table responsive-table\"><table class=\"has-fixed-layout\"><tbody><tr><td rowspan=\"2\"><strong>length<br><\/strong><strong>L<\/strong><\/td><td><strong>+0<\/strong><\/td><td rowspan=\"2\"><strong>&nbsp; [mm]<\/strong><\/td><td rowspan=\"2\"><strong>width<br>B<\/strong><\/td><td><strong>+5<\/strong><\/td><td rowspan=\"2\"><strong>[mm]<\/strong><\/td><td rowspan=\"2\"><strong>bearing bar<br>[mm]<\/strong><\/td><td rowspan=\"2\"><strong>b<br>[mm]<\/strong><\/td><td rowspan=\"2\"><strong>c<br>[mm]<\/strong><\/td><td rowspan=\"2\"><strong>d<br>[mm]<\/strong><\/td><td rowspan=\"2\"><strong>e<br>[mm]<\/strong><\/td><td rowspan=\"2\"><strong>Permissible<br>load<br>[kN]<\/strong><\/td><td rowspan=\"2\"><strong>weight<br>[kg\/pc]<\/strong><\/td><\/tr><tr><td><strong>-3<\/strong><\/td><td><strong>-5<\/strong><\/td><\/tr><tr><td colspan=\"3\" rowspan=\"3\">600<\/td><td colspan=\"3\">240<\/td><td rowspan=\"6\">30&#215;2<\/td><td>55<\/td><td>70<\/td><td>120<\/td><td>85<\/td><td rowspan=\"18\">1,5<\/td><td>4,2<\/td><\/tr><tr><td colspan=\"3\">270<\/td><td>55<\/td><td>70<\/td><td>150<\/td><td>85<\/td><td>4,6<\/td><\/tr><tr><td colspan=\"3\">305<\/td><td>55<\/td><td>70<\/td><td>180<\/td><td>90<\/td><td>5,1<\/td><\/tr><tr><td colspan=\"3\" rowspan=\"3\">800<\/td><td colspan=\"3\">240<\/td><td>55<\/td><td>70<\/td><td>120<\/td><td>85<\/td><td>5,3<\/td><\/tr><tr><td colspan=\"3\">270<\/td><td>55<\/td><td>70<\/td><td>150<\/td><td>85<\/td><td>5,9<\/td><\/tr><tr><td colspan=\"3\">305<\/td><td>55<\/td><td>70<\/td><td>180<\/td><td>90<\/td><td>6,5<\/td><\/tr><tr><td colspan=\"3\" rowspan=\"3\">600<\/td><td colspan=\"3\">240<\/td><td rowspan=\"9\">30&#215;3<br>&nbsp;<\/td><td>55<\/td><td>70<\/td><td>120<\/td><td>85<\/td><td>5,2<\/td><\/tr><tr><td colspan=\"3\">270<\/td><td>55<\/td><td>70<\/td><td>150<\/td><td>85<\/td><td>5,8<\/td><\/tr><tr><td colspan=\"3\">305<\/td><td>55<\/td><td>70<\/td><td>180<\/td><td>90<\/td><td>6,5<\/td><\/tr><tr><td colspan=\"3\" rowspan=\"3\">800<\/td><td colspan=\"3\">240<\/td><td>55<\/td><td>70<\/td><td>120<\/td><td>85<\/td><td>6,6<\/td><\/tr><tr><td colspan=\"3\">270<\/td><td>55<\/td><td>70<\/td><td>150<\/td><td>85<\/td><td>7,5<\/td><\/tr><tr><td colspan=\"3\">305<\/td><td>55<\/td><td>70<\/td><td>180<\/td><td>90<\/td><td>8,3<\/td><\/tr><tr><td colspan=\"3\" rowspan=\"3\">1000<\/td><td colspan=\"3\">240<\/td><td>55<\/td><td>70<\/td><td>120<\/td><td>85<\/td><td>8,2<\/td><\/tr><tr><td colspan=\"3\">270<\/td><td>55<\/td><td>70<\/td><td>150<\/td><td>85<\/td><td>9,1<\/td><\/tr><tr><td colspan=\"3\">305<\/td><td>55<\/td><td>70<\/td><td>180<\/td><td>90<\/td><td>10,2<\/td><\/tr><tr><td colspan=\"3\" rowspan=\"3\">1200<\/td><td colspan=\"3\">240<\/td><td rowspan=\"3\">40&#215;3<\/td><td>55<\/td><td>70<\/td><td>120<\/td><td>85<\/td><td>11,7<\/td><\/tr><tr><td colspan=\"3\">270<\/td><td>55<\/td><td>70<\/td><td>150<\/td><td>85<\/td><td>13,2<\/td><\/tr><tr><td colspan=\"3\">305<\/td><td>55<\/td><td>70<\/td><td>180<\/td><td>90<\/td><td>14,7<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Other dimensions on request.<\/strong><\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-a7d28dbe\"><h2 class=\"uagb-heading-text\">For fastening stair treads we supply:<\/h2><\/div>\n\n\n\n<figure class=\"wp-block-table custom-table --narrow\"><table class=\"has-fixed-layout\"><tbody><tr><td>&nbsp;Hexagon head bolts<\/td><td>M 12 x 35<\/td><td>ISO 4017 (DIN 933)<\/td><\/tr><tr><td>&nbsp;Hexagon nuts<\/td><td>M 12<\/td><td>ISO 4032 (DIN 934)<\/td><\/tr><tr><td>&nbsp;Washers (2 pcs)<\/td><td>M12<\/td><td>ISO 7089 (DIN 125A)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-995e62fe\"><h2 class=\"uagb-heading-text\">Installation of stair treads<\/h2><\/div>\n\n\n\n<p>During installation, it is necessary to verify whether there is too much clearance between the side plate of the stair tread and the stringer due to tolerances of these structures. If so, this clearance must be eliminated with spacer washers before bolting the stair treads to the stringers. This will prevent damage to the welds of the stair treads<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-b3d640ba\"><h2 class=\"uagb-heading-text\">Attachments<\/h2><\/div>\n\n\n\n<div class=\"wp-block-file\"><a id=\"wp-block-file--media-102bc903-7555-4576-b8af-33a3301781a2\" href=\"https:\/\/www.lichtgitter.cz\/en\/wp-content\/uploads\/sites\/4\/2025\/10\/Schodistove-stupne-standardni-s-tabulkou-rozmeru-1.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">\n     Standard stair treads with dimension table <strong>(*.pdf)<\/strong>\n  <\/a><\/div>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Stair treads made of resistance-welded gratings SP and press-locked gratings P Stair treads&nbsp;are manufactured&nbsp;in accordance with DIN 24531-1&nbsp;from both resistance-welded and press-locked gratings. For standard stair treads, load-bearing&nbsp;bars with dimensions 30 x 3 mm and 40 x 3 mm&nbsp;are used. A perforated anti-slip nosing edge is welded on the front side of the treads, which [&hellip;]<\/p>\n","protected":false},"featured_media":1587,"parent":1241,"menu_order":0,"template":"","categories":[],"tags":[68],"class_list":["post-1242","produkty","type-produkty","status-publish","has-post-thumbnail","hentry","tag-schodistove-stupne"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>SP and P stair treads - EN | lichtgitter.cz<\/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:\/\/www.lichtgitter.cz\/en\/blog\/produkty\/stair-treads\/sp-and-p-stair-treads\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SP and P stair treads - EN | lichtgitter.cz\" \/>\n<meta property=\"og:description\" content=\"Stair treads made of resistance-welded gratings SP and press-locked gratings P Stair treads&nbsp;are manufactured&nbsp;in accordance with DIN 24531-1&nbsp;from both resistance-welded and press-locked gratings. For standard stair treads, load-bearing&nbsp;bars with dimensions 30 x 3 mm and 40 x 3 mm&nbsp;are used. 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treads made of resistance-welded gratings SP and press-locked gratings P Stair treads&nbsp;are manufactured&nbsp;in accordance with DIN 24531-1&nbsp;from both resistance-welded and press-locked gratings. For standard stair treads, load-bearing&nbsp;bars with dimensions 30 x 3 mm and 40 x 3 mm&nbsp;are used. A perforated anti-slip nosing edge is welded on the front side of the treads, which&hellip;","_links":{"self":[{"href":"https:\/\/www.lichtgitter.cz\/en\/wp-json\/wp\/v2\/produkty\/1242","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lichtgitter.cz\/en\/wp-json\/wp\/v2\/produkty"}],"about":[{"href":"https:\/\/www.lichtgitter.cz\/en\/wp-json\/wp\/v2\/types\/produkty"}],"up":[{"embeddable":true,"href":"https:\/\/www.lichtgitter.cz\/en\/wp-json\/wp\/v2\/produkty\/1241"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lichtgitter.cz\/en\/wp-json\/wp\/v2\/media\/1587"}],"wp:attachment":[{"href":"https:\/\/www.lichtgitter.cz\/en\/wp-json\/wp\/v2\/media?parent=1242"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lichtgitter.cz\/en\/wp-json\/wp\/v2\/categories?post=1242"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lichtgitter.cz\/en\/wp-json\/wp\/v2\/tags?post=1242"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}