{"product_id":"aluminum-stair-railing-kit-with-posts","title":"SENMIT 36-Inch Aluminum Stair Railing Kit with 39-Inch Posts","description":"\u003cp\u003eCarry a vertical picket design along your outdoor stairs with the SENMIT aluminum stair railing kit. The configuration pairs 36-inch stair panels with 39-inch posts, using 50 × 30 mm top rails and 40 × 30 mm bottom rails.\u003c\/p\u003e\n\u003cfigure class=\"senmit-product-lifestyle\" data-senmit-lifestyle=\"stair-kit-wide\" data-senmit-batch=\"aluminum-lifestyle-20261019\" style=\"margin:28px 0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0027\/7957\/8434\/files\/senmit-adr-stair-kit-wide-lifestyle-20261019.webp?v=1792395760\" alt=\"AI-generated illustrative outdoor stair scene with black aluminum railing, sloping rails, upright pickets and square posts.\" width=\"1448\" height=\"1086\" loading=\"lazy\" decoding=\"async\" style=\"display:block;width:100%;height:auto;border-radius:12px;\"\u003e\u003cfigcaption style=\"padding:12px 0;\"\u003e\u003cstrong style=\"display:block;font-size:1.1em;\"\u003eFollow the Stair Line\u003c\/strong\u003e\u003cp\u003eVisualize black vertical pickets between sloping rails as the railing follows an outdoor stair run.\u003c\/p\u003e\n\u003cp style=\"font-size:0.875em;\"\u003eAI-generated illustrative rendering, not a customer project or installation drawing. Review the stair geometry for your own layout.\u003c\/p\u003e\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003ch3\u003eStair system dimensions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eApplication: stair runs and stair-to-landing transitions\u003c\/li\u003e\n\u003cli\u003ePanel height: 36 inches\u003c\/li\u003e\n\u003cli\u003ePost height: 39 inches\u003c\/li\u003e\n\u003cli\u003eTop rail cross-section: 50 mm× 30 mm\u003c\/li\u003e\n\u003cli\u003eBottom rail cross-section: 40 mm× 30 mm\u003c\/li\u003e\n\u003cli\u003eSquare post cross-section: 55mm × 55 mm\u003c\/li\u003e\n\u003cli\u003eDecorative post base cover: 100 mm× 100 mm outer size, low-profile flat-top style\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSelect a length\u003c\/h3\u003e\n\u003cp\u003eChoose 4FT, 6FT, 8FT, 12FT, 16FT or 20FT. Provide the stair rise, run and landing dimensions so the panel arrangement and connections can be checked for your project. Confirm the measurement basis before ordering; do not substitute a horizontal projection for a sloping railing length.\u003c\/p\u003e\n\u003cfigure class=\"senmit-product-lifestyle\" data-senmit-lifestyle=\"stair-kit-detail\" data-senmit-batch=\"aluminum-lifestyle-20261019\" style=\"margin:28px 0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0027\/7957\/8434\/files\/senmit-adr-stair-kit-detail-lifestyle-20261019.webp?v=1792395779\" alt=\"AI-generated illustrative close view of black aluminum stair railing with upright pickets and flat-top post base covers.\" width=\"1448\" height=\"1086\" loading=\"lazy\" decoding=\"async\" style=\"display:block;width:100%;height:auto;border-radius:12px;\"\u003e\u003cfigcaption style=\"padding:12px 0;\"\u003e\u003cstrong style=\"display:block;font-size:1.1em;\"\u003eA Closer View of the Stair Run\u003c\/strong\u003e\u003cp\u003eSee how the upright pickets and square posts frame a stair run between sloping top and bottom rails.\u003c\/p\u003e\n\u003cp style=\"font-size:0.875em;\"\u003eAI-generated illustrative rendering, not a customer project. The pictured layout does not specify a connector angle or kit packing quantity.\u003c\/p\u003e\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003ch3\u003eKit configuration\u003c\/h3\u003e\n\u003cp\u003eThis listing is the stair panel-and-post kit. Each post has a matching low-profile, flat-top decorative base cover to conceal the mounting plate and fixings. The cover measures 100 × 100 mm externally; this is not the mounting plate size. The itemized number of panels, posts, connectors, fasteners and any separate mounting items must be confirmed for the selected length. A kit length is not a promise of one continuous panel, and no universal stair-angle range is specified here.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"mailto:sales@senmit.com?subject=Aluminum%20Stair%20Railing%20Kit\"\u003eEmail your stair measurements to sales@senmit.com\u003c\/a\u003e before ordering if the layout or connections are uncertain.\u003c\/p\u003e","brand":"SENMIT","offers":[{"title":"4FT \/ 39\"","offer_id":45665253097538,"sku":"SEN-ADR-SK-04-39","price":339.99,"currency_code":"USD","in_stock":true},{"title":"6FT \/ 39\"","offer_id":45665253130306,"sku":"SEN-ADR-SK-06-39","price":369.99,"currency_code":"USD","in_stock":true},{"title":"8FT \/ 39\"","offer_id":45665253163074,"sku":"SEN-ADR-SK-08-39","price":439.99,"currency_code":"USD","in_stock":true},{"title":"12FT \/ 39\"","offer_id":45665253195842,"sku":"SEN-ADR-SK-12-39","price":669.99,"currency_code":"USD","in_stock":true},{"title":"16FT \/ 39\"","offer_id":45665253228610,"sku":"SEN-ADR-SK-16-39","price":799.99,"currency_code":"USD","in_stock":true},{"title":"20FT \/ 39\"","offer_id":45665253261378,"sku":"SEN-ADR-SK-20-39","price":1069.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0027\/7957\/8434\/files\/senmit-adr-stair-kit-product-flat-cover-100mm-20261019.webp?v=1792390009","url":"https:\/\/senmit.com\/products\/aluminum-stair-railing-kit-with-posts","provider":"Senmit ","version":"1.0","type":"link"}