Most cheap bed frame guides stop at pallets stacked on the floor. But if your bed frame is too low, your knees end up higher than your hips when you sit on the edge, which can strain your joints like a bad office chair. A bed frame is both furniture and daily support for your body. In this post, you’ll find eight affordable DIY bed frame ideas, plus tips on height, spacing, and support to help you build a frame that lasts and supports healthy sleep posture.
What to Check Before You Build
Before you start, know three key measurements: your mattress height, the distance between slats, and the total frame height.
The top of your mattress should be about 20 to 25 inches above the floor when it’s on the frame. If it’s lower, getting in and out of bed can put your knees above your hips, which may strain your lower back over time, especially if you’re over 40 or have joint problems. Start by measuring your mattress thickness, then build the frame base to reach the right height.
Slat spacing is more important than most people realize. If the gaps are wider than 3 inches, your mattress can sag between the slats over time, creating pressure points and potentially voiding a memory foam warranty. Keep slats no more than 2.75 inches apart, measured from the center of one to the center of the next, and use at least 2×4 lumber. 1×4 boards tend to flex too much under normal use.
One last thing: your frame needs a center support beam. For any bed larger than a queen, you must add a center leg or beam, or the middle will start to sag within a year, no matter how strong the sides are.
8 Cheap DIY Bed Frame Ideas
1. Pallet Frame With Sanded Edges
If you use standard shipping pallets that are sanded and stacked two layers high, a queen mattress will sit about 20 to 25 inches off the floor. Be sure to sand all visible surfaces well, since raw pallet wood can splinter. Before bringing pallets inside, check for an “HT” stamp, which means they were heat-treated and not chemically fumigated. You can often get two to four pallets for free from local businesses, but remember to add a center support board for queen or king sizes.
2. Plywood Platform on 4×4 Legs
Cut a sheet of 3/4-inch plywood to match your mattress size, then attach four 4×4 legs so the total height with the mattress is 20 to 25 inches. This design doesn’t use slats, so you don’t need to worry about spacing, but drill plenty of ventilation holes in the plywood to prevent moisture under the mattress. The total cost is usually under $80, depending on lumber prices.
3. Cinder Block and Wood Beam Frame
Stack cinder blocks two or three high at each corner and midpoint, then lay 2×8 or 4×4 beams across the top to support the mattress directly. This is one of the cheapest options, often under $50, and the block height is easy to adjust to the correct mattress elevation. The tradeoff is a more industrial look, though painting the blocks helps them blend into a finished room.
4. Storage Crate Frame
Arrange wooden storage crates in a grid and secure them with L-brackets to make a frame with built-in storage underneath. Stack the crates to reach the right height, then place plywood on top before adding your mattress. This is a great option for small bedrooms where you need extra storage space.
5. Simple 2×4 Box Frame
Build a rectangular box frame from 2x4s sized to your mattress, with a perimeter rail high enough to hold slats flush or slightly recessed. Add legs cut to the correct height and a center support beam running the length of the frame for queen-sized or larger. This is the most “real bed frame” looking option on this list and typically costs $60-100 in lumber.
6. Bookshelf Headboard-Frame Combo
Two low bookshelves positioned as the head-side legs of the frame, with a beam spanning between them, give you storage and structural support in one piece. This only works if the shelves are rated to bear weight—check the manufacturer’s load rating before using them as structural legs, not just for books. It’s a strong option for anyone short on cash and floor space.
7. Bed Risers Under an Existing Frame
If your current bed frame is sturdy but too low, bed risers are the quickest solution and usually cost less than $20 for a set of four. Measure the height from the floor to the top of your mattress first, then pick risers that put you in the 20 to 25 inch range. This isn’t a full DIY build, but it solves the most common ergonomic problem here for very little money.
8. Door platform frame which has been repurposed
You can use an old solid-core door laid flat on a simple leg frame to make a sturdy platform base without slats. Solid-core doors are strong and don’t flex much, but hollow-core doors will sag under a mattress in just a few weeks, so check which type you have before you start. Sand and seal the door if it has an old finish that could affect your mattress.
FAQ
What height is appropriate for a DIY bed frame?
Aim for 20 to 25 inches from the floor to the top of the mattress, not just the frame. This range keeps your knees roughly level with your hips when sitting on the edge, reducing strain when getting in and out of bed.
Do pallet bed frames need a box spring?
No, pallet frames don’t need a box spring because the pallet slats provide support, but make sure the gaps between boards stay under 3 inches to prevent mattress sagging. Memory foam or hybrid mattresses especially need tighter spacing to avoid pressure points.
Is a DIY bed frame strong enough for a queen or king mattress?
Yes, if you add a center support beam or leg — without one, queen and king frames bow in the middle within months regardless of how thick the side rails are. This is the single most common mistake in budget bed frame builds.
What’s the cheapest bed frame option on this list?
Bed risers under an existing frame or a cinder block-and-beam build are the cheapest options, often under $50. Risers are the faster fix if your current frame is fine but sits too low.
Closing
A cheap bed frame only saves money if it also gets the height and support right — otherwise you’re trading dollars now for a sore back later. Browse more functional bedroom fixes on Ergontag if you’re reworking the rest of the room too.