How to Make Car Ramps at Home: Wood and Steel Options

Start With the Weight and the Wheels

Before you cut anything, find your vehicle's gross weight on the door jamb sticker. Ramps carry the weight of the axle that sits on them, but commercial ramp ratings are given per pair against gross vehicle weight, and it is smart to use the same yardstick for a homemade pair. If you are not sure the design is strong enough, it is not.

Next, measure your tires. The tread surface should be wider than the tire so the tire never hangs over an edge. Also check how low your front bumper sits. A low car needs a long, gentle slope, or the bumper will scrape before the tire reaches the flat top.

A homemade ramp is a one-off. Nobody has load tested it for you, and we compare published specifications rather than DIY plans. That is why the guide below leans toward conservative choices.

Wood Ramps: Materials and Steps

Yes, you can make car ramps out of wood, and it is the most common home project. The usual design is a stepped or sloped stack of boards screwed and glued together, with a flat top and a stop at the end. Use straight, dry lumber with no large knots, splits or warping.

Here is a simple build for one ramp. Make two identical ramps.

• Cut long base boards, then cut each higher layer shorter so the stack forms a stair-step slope.
• Spread exterior wood glue between layers, then clamp them together.
• Drive structural screws down through every layer, staggering them so they do not split the same grain line.
• Add a raised block at the front of the flat top as a wheel stop, so the tire cannot roll past the end.
• Sand the edges, then add grip with coarse non-slip tape or textured tread on the surface.
• Fit rubber pads or a rubber strip under the low end so the ramp does not creep on smooth concrete.

What Lumber Size to Use

Dimensional lumber is sold by nominal size, and the real size is smaller. A 2x10 measures about 1.5 in by 9.25 in, and a 2x6 about 1.5 in by 5.5 in. Wide boards give the tire more room and spread the load. Laying them flat in stacked layers puts the grain to work against the weight.

Each flat layer of 2x lumber adds about 1.5 in of height. Four layers give about 6 in of rise, which is close to what many commercial plastic models offer.

Here is how the common sizes compare.

Steel Ramps: What to Know

If you are wondering how to build car ramps out of steel, the honest answer is that it takes more skill than wood. The usual design is a pair of sloped rails or channels with cross braces underneath and a flat steel tread on top. Weld quality matters a lot, because a bad joint can fail without warning.

Steel is heavy. For a comparison, the Garvee solid steel pair on our comparison list weighs 32.69 lb, is 35 in long and 13 in wide, and is rated at 8,000 lb per pair with 8 in of lift. The Ironton polymer set is 35.5 in long and 12 in wide, weighs 20.6 lb, and is rated at 12,000 lb per pair. Those numbers show how a long, wide footprint is common even at modest lift.

Plan on grinding the edges smooth, coating the metal to resist rust, and adding a grip surface on top, since bare steel gets slick when wet. Wear eye protection, hearing protection, gloves and a proper welding helmet. Keep a fire extinguisher nearby, and clear the area of anything that can burn.

How to Make Car Ramps Higher

More height is possible, but it makes the ramp steeper unless you also make it longer. As a rough geometry check, a 6 in rise over a 24 in run is about a 14 degree slope. Raising the rise to 8 in on that same 24 in run would be about 18 degrees, which is steep for many cars.

So when you add layers, lengthen the slope at the same time. The bottom boards should extend further out so the incline stays gentle. A taller stack also needs wider support. Tall, narrow stacks can tip sideways, and tall wooden ramps put more stress on the screws and glue joints.

For comparison, the best car ramps list shows lift heights from 2.44 in to 8 in among the models that publish the number. If your plan calls for more than that, think hard about whether ramps are the right tool, or whether jack stands are a better fit.

Safety Checks Before You Drive Up

Ramps hold a car in the air, so mistakes can be serious. Test your ramps in a low-risk way first, with the car only slightly raised and nobody near it. Look for cracks, bending, splitting or loose screws before every use.

Follow these habits every time:

• Use a flat, hard, level surface. Never use ramps on soft ground, gravel or a slope.
• Chock the wheels that stay on the ground, set the parking brake, and put the car in park or in gear.
• Drive up slowly in a straight line, ideally with a spotter, and stop when the tires touch the wheel stops.
• Never place any part of your body under a car that is supported only by homemade ramps. Add rated jack stands as a backup.
• Retire any ramp that shows damage. Do not repair a cracked load-bearing piece with more screws.

When Buying Makes More Sense

A rated pair removes the guesswork, especially if you work under the car often or drive a heavy truck or SUV. Our best car ramps page puts weight capacity, lift height, incline and weight per pair on one spec sheet. That is helpful if you want to see how a store-bought option compares with your plan.

If you only need a quick look at the options by vehicle type, the best ramps for car page is a good place to start. Check the rating against your vehicle's gross weight, and compare slope and length before you decide. A well-built DIY pair can serve a light car for basic jobs, but it should never be treated as a rated product.

Frequently asked questions

How long does it take to build a wood ramp pair?

It depends on your tools and skill. Cutting, gluing, clamping and screwing two stacked ramps is usually an afternoon project, plus time for the glue to cure before you use them.

Should I use pressure-treated lumber?

It can help if the ramps will sit outside, since it resists rot. Let it dry and check for warping before you build, and wear a dust mask when cutting.

Do homemade ramps need a wheel stop?

Yes. A raised block at the front of the flat top gives you a clear signal to stop and keeps the tire from rolling off the end.

Can I use homemade ramps for oil changes?

Only if they are well built and tested on a level surface. Chock the other wheels and add jack stands for backup before you go under the car.