Kiran.Building

King platform bed plans

Low 2×6 platform bed with slats. No box spring needed. 76″ × 14″ × 80″, about $196 in 2×6 lumber, 4×4 post, 1×4 pine board. Change any size below.

76″ × 14″ × 80″W × H × D
~$196materials (estimate)
25parts
7steps
Deck height

Drag an orange dot to resize; a dashed line shows when it snaps to a common size. Click a dot, then use the arrow keys to nudge 1/8″ (hold Shift for 1″). Every size can also be typed in the panel.

Checks

  • Slat may sag 1/4″ (target 1/8″). Lower the slat span with a centre rail, or use 2×4 slats.
  • The side rail passes the sag check.

Shopping list

QtyItemEst.
52×6 lumber, 8′ (board)Home DepotLowe's$36.00
14×4 post, 8′ (board)Home DepotLowe's$11.20
141×4 pine board, 8′ (board)Home DepotLowe's$123.20
13″ exterior screws (box of 75)Home DepotLowe's$12.00
11 5/8″ wood screws (box of 100)Home DepotLowe's$9.00
1Felt floor pads (pack)Home DepotLowe's$5.00

About $196 · rough estimates, check the store

Parts

PartQtyLengthWidthMaterial
ASide rail280″5 1/2″2×6 lumber
BEnd rail273″5 1/2″2×6 lumber
CCentre rail177″5 1/2″2×6 lumber
DLeg613 1/4″3 1/2″4×4 post
ESlat1476″3 1/2″1×4 pine board

Cut list

2 × 2×6 lumber, 96″ → A 80″ each

A

2×6 lumber, 96″ → C 77″

C

2 × 2×6 lumber, 96″ → B 73″ each

B

4×4 post, 96″ → D 13 1/4″ · D 13 1/4″ · D 13 1/4″ · D 13 1/4″ · D 13 1/4″ · D 13 1/4″

DDDDDD

14 × 1×4 pine board, 96″ → E 76″ each

E

Kerf 1/8″ included. Every cut runs edge to edge.

Steps

  • Tape measure
  • Speed square
  • Pencil
  • Drill/driver
  • Clamps
  • Safety glasses
  • Hearing protection
  • Dust mask
  • Circular saw or miter saw
  • Miter saw, or circular saw in two passes, for 4×4 posts
  • Sander, 120 and 180 grit

Underlined words have a short explanation: hover or tap them. All of them are on the glossary page.

  1. 1Before you start

    Read every step once, start to finish, before you buy or cut anything. Each step names the parts it uses by letter; the parts list gives their sizes.

    Set up somewhere flat with good light. A pair of sawhorses with a sheet of plywood on top makes a fine work table.

    Wear safety glasses whenever a tool is running, hearing protection for saws, and a dust mask for sanding and for cutting treated wood or sheet goods. Tie back long hair and loose sleeves. Keep children and pets out of the work area.

    • Tip At the store, pick straight boards: hold each one up to your eye and look down its length. Skip boards that bow, twist or have big knots near the ends.
    • Tip Measure twice, cut once. Most mistakes are a misread tape, not a bad cut.
  2. 2Cut and label the parts

    Cut every part on the cut list. Cut the longest parts first: if one goes wrong, it can still become a shorter part.

    To mark a cut, hook your tape on the end of the board, make a small V with its point exactly at the measurement, and draw a square line through the point with a speed square. Put an X on the waste side.

    Cut on the waste side of the line, so the blade's kerf (about 1/8″) comes out of the scrap, not your part.

    Write each part's letter in pencil on a face that won't show, and stack the parts by letter.

    Sand the faces before assembly while they're flat and easy to reach: 120 grit, then 180.

    ✓ Lay the parts out and count them against the parts list. Measure a few: if one is off by more than 1/16″, recut it now.

    STOP. Let the saw reach full speed before it touches the wood, keep both hands clear of the blade's path, and never reach under a board you're cutting. Support long boards on both sides of the cut so the blade doesn't pinch.
  3. 3Build the frame

    Stand the side rails (A) on edge, 76″ apart outside to outside.

    Fit the end rails (B) between them at each end. Drive 3 screws, 3″, through each side rail into the end rail.

    ✓ Diagonals match within 1/8″. The frame is 76″ × 80″.

    AB
  4. 4Add the centre rail

    Fit the centre rail (C) between the end rails, at the middle (38″ from each side). Screw through the end rails, 2 screws each end.

    C
  5. 5Add the legs

    Flip the frame upside down. Set a leg (D) in each inside corner, flush with the rail tops.

    Screw each leg through both rails, 2 screws per rail.

    Add a leg under each end of the centre rail.

    D
  6. 6Lay the slats

    Turn the bed upright. Lay 14 slats (E) across the frame, 2 3/8″ apart.

    Use an offcut 2 3/8″ wide as a spacer. Screw each slat at each rail with 1 5/8″ screws.

    ✓ The gap between slats is 3″ or less everywhere.

    E
  7. 7Finish

    Ease every sharp edge and corner with 120-grit sandpaper so nobody gets a splinter.

    Sand all over with 180 grit, always along the grain (the direction the wood fibres run). Scratches across the grain show through stain.

    Wipe off the dust with a barely damp rag and let it dry.

    Paint, stain or a clear coat (water-based polyurethane is the easiest). Apply thin coats with the grain, let each dry fully, and sand lightly with 220 grit between coats.

    Let it dry for the time on the can before using it.

    • Tip Try your finish on a scrap of the same wood first: stain looks different on every board.

Conceptual layout, material estimate and assembly guide from the sizes you entered. Not engineering, not a building plan, not stamped or approved. Confirm measurements on site; follow local codes and product instructions; anchor tall pieces before use. Using this plan means you accept the Terms of Use.

Questions

How much does it cost to build a King platform bed?

About $196 in materials at typical US home-center prices, from the 6-line shopping list. Prices vary by store and region.

What size is it?

76″ wide, 14″ high and 80″ deep. Every size can be changed and the plan updates.

What lumber do I need?

5 × 2×6 lumber, 8′; 1 × 4×4 post, 8′; 14 × 1×4 pine board, 8′. The cut list shows which part comes from which board, with the saw kerf included.

What tools do I need?

Tape measure, Speed square, Pencil, Drill/driver, Clamps, Safety glasses, Hearing protection, Dust mask, Circular saw or miter saw, Miter saw, or circular saw in two passes, for 4×4 posts, Sander, 120 and 180 grit.

How many parts and steps are there?

25 parts in 5 kinds (2×6 lumber, 4×4 post, 1×4 pine board), assembled in 7 steps.