Sliding Futon Frame

A solid wood sofa bed frame with two arms and two slatted decks that slide forward to turn a seat and an upright back into a flat bed.

Details

Category: Beds › Convertible Beds

By Huu Khanh Nguyen · Updated November 9, 2026

Parameters

Name	Default	Unit
Width Across The Arms	mattressWidth + 2 * armThickness	mm
Length In Bed Position	mattressLength	mm
Arm Height	armHeight	mm
Mattress Width	1371.6	mm
Mattress Length	1905	mm
Sofa To Bed	0
Arm Height Value	720	mm
Arm Thickness	45	mm
Leg Width	45	mm
Deck Height	305	mm
Pin Height	deckHeight - 15	mm
Sofa Back Angle	Math.asin(Math.min(1, (787 - pinHeight - 15) / backLength)) * 180 / 3.141592653589793	°
Back Deck Length	mattressLength * 11 / 21	mm
Seat Deck Length	mattressLength * 10 / 21	mm
Wheel Spacing	backLength * 0.18	mm
Pin Inset	wheelSpacing + legWidth	mm
Arm Depth	seatLength + pinInset	mm
Pin Position In Sofa Pose	-armDepth / 2 + pinInset	mm
Slide Length	backLength - pinInset	mm
Slot Width	36	mm
Back Slat Pitch	(backLength - 30) / 21	mm
Seat Slat Pitch	(seatLength - 30) / 19	mm
End Cap Thickness	20	mm