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< Back to Table Of Contents < Back to Topic: Create & Innovate Plus Home Made Gifts & Games
| article number 213 article date 02-28-2013 copyright 2013 by Author else SaltOfAmerica |
| Help a Gimpy Dog … Build a Dog Ramp ... Quick & Cheap. | by Mean Uncle George Moment | Rocky (a big dog) hurt himself jumping out of his Mom’s SUV. She found a plastic dog ramp at a local pet shop but it was really expensive. Lucky for us, it takes just one sheet of cheap ¼ inch plywood, about 4 really cheap 1 x 2’s and hinges to make a decent dog ramp. It’s fun too … perhaps because it’s really easy to scrap together … or perhaps because you know it will see a lot of service. Let’s get going. How wide do we cut the ¼ inch plywood? Note my paws. They are the paws of a big dog. 18 inches wide will be just right. |
3 ½ feet long for each of the two sections will fit in most vehicles. That will be 7 feet of ramp unfolded. I cut the sheet on a table saw. ¼ inch ply is light and easy to handle on a table saw. |
Here are the two ¼ inch ply pieces, again, 3 ½ feet by 18 inches. I’m looking at hinges I have in my junk pile. The brass door hinge won’t work because the screw holes are too wide for the 1 x 2 backings … which of course are ¾ by 1 ½ … Duh is me! You can use door hinges with an extra backing. You are smarter than me. |
Yeah. That will work. Just eyeballing the design. |
OK. Here we are going to cut the 3 ½ foot long 1 x 2’s for the sides, 4 of them in all. Note the angle. We want the ramp to NOT unfold completely horizontal. It will become horizontal over use. |
That looks like a 5 degree angle … didn’t measure it. When the 2 boards of the folding ramp come together and two 5 degree angles meet, we will have a 10 degree angle. Just want you to know ahead of time. You design it the way you want. |
The length is not critical … what will be critical is placing the angle ends of the 1 x 2’s flush with the ends of the plywood boards. |
Cut four 3 ½ foot long 1 x 2’s using the same angle. Wish I had my chop saw at the shop. Just set the angle on it. |
Of course, after I get the 1 x 2’s cut, I note that my chop saw is here in the shop after all. |
Just eyeballing the design. Hmmm … which way will the ramp fold. The 1 x 2’s go on top. The angle of the long board should protrude toward you with the bottom flush. |
Four cross members of 1 x 2’s will [cross] each half of the ramp. Laying them vertical gives more strength but the dog may trip on them. Turns out … laying the cross-members flat gives plenty of strength to the ramp. We will place the cross-members between the long (lengthwise) 1 x 2’s. Near the top of the photo, I measure the board length. We will cut 8 of them. |
Just trying to see what the halves will look like. You LAR designers (Looks About Right) can vary the design the way you want. |
I’m going to mark the edges of the lengths of the plywood ½ of the 1 x 2 width so I place the screws in the middle of the 1 x 2’s. The line is 3/8 inch from the edge since the 1 x 2 placed vertically is ¾ inches wide. |
Just checking on how this design is going. And remembering to have the angle go away from the board. ‘Course if you get it wrong you just unscrew the long 1 x 2’s, turn them over, and screw them in again. |
I just put in a few screws to ensure that the side of the plywood is flush with the vertical 1 x 2’s. Now I’ll drill the rest of the holes for the screws, 5 or 6 inches apart. Trying to evenly space the screws may be a good idea as you may want to place the screws on the other board offset from these so that the boards fold without the screws hitting. #10 by 1 ½ screws were used on this project. |
One side done, now do the other side. … Starting to look cool. |
After marking the locations of the screws on the next plywood sheet, I marked offset lines (the bigger lines) where the screw holes will actually go … again hoping that the screws won’t hit each other when folded. |
Rechecking that I have the angle ends correctly positioned before doing the other board. These boards are upside-down so we want to see this up angle between the up-side-down boards when you butt them together. |
Found some old indoor-outdoor carpet in the garage … removed 10 years dust from it. I think that the dog will like this deluxe carpeting which we will place under the cross-members. I cut it with metal shears. |
Place the cross-members, 4 per half, and put a couple of temporary screws through them to locate the cross-members. We will screw the cross-members from the other side, then remove these temporary screws. |
Flip over the board. See the sharp temporary screws. I used these to draw the line telling me where the center of the 1 x 2 cross-member is. Here I used #8 x ¾ inch flathead screws. Don’t want the screws points to go beyond the cross-member on the other side … or else poor doggy will scratch his paws. HERE I MADE A MISTAKE! I put in all the screws before removing the temporary screws on the other side. The board wasn’t happy and warped. |
Here’s the good way. Mark the screw lines, drill the small holes and just screw-in the two outside #8 x ¾ flatheads. Turn over and remove the temp screws … then turn back this way and screw in the rest of the #8 x ¾ screws. |
The two halves are done. Have them upside-down like this and butt them together at the angle ends with one half elevated. |
Place the hinges with the hinge-pins over the center-line. Drill the screw holes slightly to the outside of the hinge holes. I had to move the hinges a bit so that the holes don’t end up over existing screws. |
Look at the last picture and compare it to this picture. The boards pulled together nicely. |
It’s 7 PM but I’m sure that it’s 5 o’clock somewhere … but just want to stare at the ramp before I open a cold one. |
Rocky’s gimpy leg is still healing so his stand-in, Ed, poses for this picture. |
The weak link of this design? You can be sure that the screws holding in the hinges will loosen over time. Maybe you will repair it with a piano hinge. Also the angle ends (at the center) of the length-wise 1 x 2’s will compress over time, flattening the ramp. You can just glue in shaved wood or resign the ends with metal pieces. |
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