Posted By Gary Renick on April 30, 2009
As any good Webmaster will do, I am constantly checking and analyzing my site to find ways to improve it. One of the statistics that is gathered are keyword search phrases. I have recently notice a great deal of interest in information on building wooden wheelchair ramps. While I recently wrote an article entitled “Ramp Building 101” that covered the building of concrete ramps here at my own residence. So I thought I would cover building a wooden wheelchair ramp. I have in the past built several wooden ramps.
Wooden ramps come in a wide range of sizes and materials. So we will cover the general rules you must follow in order to build a sturdy and most importantly safe wooden wheelchair ramp. I say most of all safe because I have seen and even used some wooden ramps that to my mind were more dangerous than not having a ramp. There are several steps you must take in order to build a safe and sturdy wooden ramp.
First of all ask yourself do I really want to build a wooden ramp here or would it be better to use concrete here. Or maybe even some other material such as steel or wrought iron. In general if you are building a structure that could be considered temporary, such as for a modular home in a modular home park, then by all means use wood. It is lighter and if built properly can be moved with the modular home. An older home that is above grade with a crawl space or basement is another good candidate for a wooden ramp. However if you need to just get past a raised threshold on a home with slab construction then concrete is less expensive and much safer than building a wooden ramp. So always ask yourself first is a wooden ramp my best choice for this project.
Next we need to examine our site and decide what we are going to do before we begin. We must have a plan. The most common situations where you would use a wooden ramp involve trying to overcome a set of stair or maybe even more than one. You have to keep in mind the formula for determining the grade or angle of your ramp which is 1:12 or for every 1” of rise you need 12” of run or length. Also that every 30” of rise requires a landing at least 60” long. As you can see a 36” rise would require a ramp that is 46 feet long if it went in a straight line. Rarely would we have that much room to build a ramp. So a series of shorter ramps are usually built in a switchback style with a 5′ x 6′ landing at the end of each run. So as you can see it will always pay to have a plan before you start.
Okay we’ve looked at whether or not we need a wooden ramp or not. And we have our plan all laid out as to how we are going to build it. Now we must consider what we are going make our ramp out of. Now I know you’re saying “Wait a minute I thought we were building a wood ramp” Yes we are, but you can’t just use any old wood. We want pressure treated outdoor lumber. We will need 6”x6” post and 2” x 4”s and outdoor grade plywood for the roadway or 1” x 4”s. We will need stainless steel or galvanized carriage bolts and screws. I do not advise using nails to construct a wheelchair ramp. A wheelchair ramp is used too much and there is more stress than simple nailed construction can take. You will also need round footing forms and post brackets.
The tools you will need are very basic. Since you would normally build a wheelchair ramp on site you will not be using any shop tools. You will need a hand saw or circular saw. A drill with a 1/2” bit to drill holes for the carriage bolts. A ratchet to tighten the nuts. A tape measure ,a carpenters square, level, and cordless drill driver are other tools you will need. You will also need a post hole digger and a shovel for the footing work.
You begin your construction with the foundation. They say everything you do must have a good foundation. Whether you are starting new business or building a house you must start with a good foundation. Any structure is only as good as it’s foundation. So we take special care with the footings of our wheelchair ramp. They should be place every six feet forming a 6′ x 4′ rectangle with a post bracket embedded in the top.
As we can see building a wooden wheelchair ramp is not a simple undertaking. It is however within the skill level of the average do-it-yourself builder. And while I wrote an article covering the building of a concrete ramp it was a rather simple threshold ramp you would encounter in typical slab construction home. I would not however recommend a concrete ramp project of the scale I have just described for the do-it-yourself builder unless you have prior experience with concrete projects of this scale.
Category: Do-it-yourself, Handicap Issues |
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Tags: accessibility, accessible home design, Simple Wheelchair Accessibility Modifications, Wheel Chair Accessible Home, Wheelchair Accessible Remodeling Adaptive