What's inside
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A full rain barrel can weigh more than 400 pounds, so the stand is structural furniture, not a decorative platform. These plans make a wooden stand for one standard 50- to 60-gallon barrel, with two reinforced cross braces to resist racking and tipping. The finished stand is about 24 inches wide, 24 inches deep, and 18 inches high. Adjust the dimensions if your barrel has a wider base, but keep the platform at least 2 inches wider than the barrel in every direction.
Contents
Project overview and skill level
This is a solid beginner-to-intermediate project. The cuts are straightforward, but accurate assembly matters because a stand that is slightly out of square can rock under load. Plan on three to five hours of work, plus drying time for exterior finish. Build it in spring or early summer when the lumber is dry and temperatures are suitable for glue and finish.
| Stand feature | Recommended choice | Why it matters |
|---|---|---|
| Frame lumber | Pressure-treated 4×4 posts | Handles weight and resists ground moisture |
| Platform | Pressure-treated 2×6 boards | Supports the barrel without excessive flex |
| Cross braces | Exterior 2×4 diagonal braces | Stops side-to-side movement and racking |
| Fasteners | Hot-dipped galvanized or stainless structural screws | Resists corrosion in treated lumber |
| Finish | Exterior penetrating stain or water repellent | Reduces checking and water absorption |
Materials and tools
Buy two 8-foot pressure-treated 4x4s and three 8-foot pressure-treated 2x6s. You will also need one 8-foot 2×4 for the cross braces, eight 3/8-inch-by-4-inch galvanized carriage bolts with washers and nuts, and a box of 3-inch exterior structural screws. Use a galvanized exterior structural screw rather than ordinary drywall or deck screws for the main joints.
Tools include a circular saw, drill and bits, socket or wrench, tape measure, speed square, clamps, level, and a sander. A penetrating exterior wood stain is useful, but finish is optional if you use pressure-treated lumber and accept faster weathering.
Pressure-treated 2x4s are fine for the braces; buying cedar for the entire project is not necessary. Cedar is lighter and easier to cut, but it costs more and is less resistant to crushing around heavily tightened bolts.
Cut list
- Four 4×4 legs, 18 inches long
- Four 2×6 platform rails, 24 inches long
- Five 2×6 platform boards, 24 inches long
- Two 2×4 diagonal braces, approximately 30 inches long
- Four 2×4 short brace blocks, 8 inches long
Measure the actual width of pressure-treated lumber before cutting. A nominal 2×6 is normally about 1 1/2 by 5 1/2 inches, but dimensions vary slightly. The five platform boards should create a surface close to 24 inches square with narrow 1/8-inch gaps for drainage.
Build the platform
Start with two 24-inch 2×6 rails on edge, parallel to each other. Place the other two rails between them to form a square frame. Check both diagonals; they should match within 1/8 inch. Drill two pilot holes at each corner and drive 3-inch structural screws through the outside rails into the rail ends.
Lay the five platform boards across the frame. Leave about 1/8 inch between boards and keep the ends flush. Predrill, then drive two screws into each board where it crosses each rail. Do not glue these joints. Exterior glue offers little benefit here and can trap water between boards.
Attach the legs
Turn the platform upside down and position one 4×4 leg inside each corner. The legs should be flush with the platform frame, not set underneath the deck boards alone. Use a square to keep each leg perpendicular. Drill two 3/8-inch holes through each side of the platform frame and through the leg, staggering the holes vertically so the bolts do not collide.
Install the carriage bolts with washers under the nuts. Tighten firmly, but do not crush the wood fibers. After the stand has sat outdoors for several days, retighten the nuts because treated lumber often shrinks as it dries. If your barrel is unusually tall or sits in a windy location, use galvanized ground anchors to secure the legs to a patio or soil-mounted base.
Install the reinforced cross braces
The diagonal braces are the important part of this design. Without them, the legs can shift sideways even when the platform joints are tight. Fit one 2×4 diagonally across each of two opposite sides of the stand. The braces should run from near the bottom of one leg to the underside of the platform near the opposite leg.
Hold each brace in place and mark the cuts so the ends sit flat against the legs and platform frame. A simple square-cut brace is adequate; you do not need complicated compound angles. Trim the brace, test-fit it, and attach it with two 3-inch structural screws at each end. Predrill near the ends to reduce splitting.
Add one 8-inch brace block at each upper brace connection. Set a block beneath the platform rail and behind the diagonal brace, then screw it to the rail and brace. These blocks increase the bearing area and keep the diagonal from twisting or pulling out of the rail. For a stand exposed to strong wind, install a second pair of diagonal braces on the remaining two sides. Four braces are stiffer, but they make access to the barrel spigot less convenient.
Weatherproof and place the stand
Round sharp corners with 80-grit sandpaper, especially around the platform edge and brace ends. Brush on two coats of an exterior water-repellent stain, allowing the first coat to dry according to the label. Do not seal the bottom ends of pressure-treated legs immediately after purchase if they are still visibly wet; let the wood dry first so the finish can adhere.
Set the stand on compacted gravel, pavers, or a small concrete pad. Avoid placing it directly on lawn or bare soil, where the legs will wick water and settle unevenly. Check the platform with a level before filling the barrel. A slope of even 1/2 inch can make a tall barrel feel unstable.
Testing and maintenance
Before connecting a downspout, place the empty barrel on the stand and push firmly from each side. The stand should not rock or twist. Add water in stages, checking the joints at one-quarter, one-half, and full capacity. Stop if a leg bends, a bolt pulls through, or a brace opens at either end.
Inspect the stand at the start and end of each wet season. Tighten loose nuts, replace split braces, and keep the platform clear of leaves that hold moisture. A cheaper stand made from 2×4 legs can work for a small 25-gallon barrel, but for a full 50- or 60-gallon barrel, the 4×4 legs and reinforced braces are worth the extra lumber.