coolthaihouse.com blog

some thoughts from Dozer
builder image

Side security gate

image dsc21192.jpgMetal work? In this particular case, I needed a sliding side security gate for my back lot 2 meter perimeter wall. It is 280 centimeters wide and just over 2 meters high. This time I didn’t opt for stainless steel wheels (you can always tell stainless since it won’t attract a magnet), which aren’t commonly used but are the best and most expensive. I went for the top grade 4 inch wheels (sticky metal, lek niaw, เหล้กเหนียว).

I was going to job the work out to a shop, but luckily the perimeter wall workers are skilled metal workers also. I kind of have an idea of the work that on-site metal workers do, since I had all of the fancy metal work at the coolthaihouse done on-site by the construction crew. For that job I bought a good grind cutter, for about 5000 baht. The workers had a welder, but to purchase one they start from only about 2 – 3k baht. In any event, as luck would have it this current crew had all their own tools to do metal work.

Although I’ve been pleased with all of the on-site metal work I’ve had done, if it is something intricate, or something where you’re going to be up nights worried about a misplaced weld, I would suggest having the metal shop do the work. On the downside, metal shops are really really expensive. The job will be at least half price if you have it done on-site.

I think it will become obvious to you within a couple of days if the work isn’t up to snuff. As far as this gate it turned out really nice for my design, as a closed side entry security gate.

The metal sheeting was a special lighter weight type metal used in automobile manufacture and more expensive, with the two sheets costing 2600. The total project cost was 7055 materials + appx. 2000 labor for a total of 9055.

image dsc21093.jpgLaying down some welds. !@— image dsc21129.jpgShows the metal sheeting after the first raw weld. !@— image dsc21131.jpgThe end of the view of the track. The track is a piece of angle iron with round rebar welded on top, cemented in place. !@— image dsc21134.jpgSetting the entire gate in place. !@— image dsc21190.jpgThe finished outside view. !@— image dsc21191.jpgThis is a view of the 4 inch wheel pairs. The wheels and housing apparatus come separately. !@— image dsc21196.jpgHere is a view of the gate harness. This tends to be the most stable and durable, where the housing is above the top of the gate and the rolling wheels are pointing downward. There is also another design option if you have something on the top of your gate (such as decorative security metal) and need a side mounted housing (as was done with the coolthaihouse front gate). !@— image dsc21195.jpgOn side of the gate harness close up. !@— image dsc21194.jpgThe inside view of the finished gate. !@—

4 Comments

  1. Looks like a good, stout gate and not too expensive. Shame you had to fit the razor wire on top – noticed here in Thailand that broken glass embedded in the top lintel is not too common?

  2. lots of barbed wire and high walls used on khun luey house compounds in the big mango

  3. ps

    couple of things i would add

    a) make sure that the wheels are bolted inplace rather than wlded, after a few years of use they seem to fill with sand and grind themselves away, so its eqsy to replace them

    b) your end wall seems a good 2 m long, if it is just a corner post, then i would recommend some kind of spring buffer, otherwise the gate is like a battering ram and will quickly crack the post

  4. As far a the wheels, they come they are purchased separately from the harness aparatus which holds a pair of wheels. The wheels bolt into the harness, which is welded to the lower gate support, which seems like a good system.

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