Photo by: Photo: Vincent Laurence
To determine the length of the side rails, I laid one foot post and one head post down so the inside faces of the end rails would be 80-1/2 in. apart (enough space around a standard queen-size mattress or box spring for sheets and covers). The distance from the inside face of the end rail to the inner edge of the post was 5-1/4 in., so I subtracted twice that from 80-1/2 in. and cut the side rails 70 in. long.
Hardware for a bed this large proved to be difficult to find. I finally located some heavy-duty, zinc-plated knockdown bed fasteners in the Whitechapel catalog (800-468-5534). I ordered eight pairs, two for each rail end, because this is such a heavy bed.
To mark out the bed fastener locations, I clamped all four posts together with feet flush at the bottom. This ensured that all eight mortises would line up precisely. For accuracy, I used a knife to make the scribe lines. Then I transferred those lines to the ends of the side rails and marked the top edge so that the rails couldn't be flipped upside down. The rails took the pin part of the fasteners; the slotted plates were fitted to the posts.
I did all the mortising on a horizontal mortiser, transferring the scribe lines from a bedpost to the fence of the mortising table. Then I set my stops and proceeded to cut. Because the bed hardware was about 7/8 in. wide, I used a 1/2-in. bit. I flipped the posts and rails over to make two overlapping cuts, which ensured a centered cut. Next I squared the ends of all 16 shallow mortises with a chisel and marked and mortised the deeper slots to accept the rail pins. The routing and inlaying could be done with a router and jig.
Before attaching the hardware, I checked mating pieces for a fit. I noticed about 1/32 in. of side-to-side play -- very little really, but for this situation, still too much. The hardware had to align the rails perfectly flush with the posts so the moldings would line up. To remedy this situation, I took a metal punch and pounded a dimple on either side of the slots. It worked perfectly. Absolutely no play. With the hardware in shape, I drilled pilot holes in all the posts and rails and screwed all the bed fasteners into place.
Before gluing anything, I dry-fitted the entire bed to be sure that everything was in order and that the rails were interchangeable. Then I disassembled the bed and sanded all the parts to 320-grit.