Good afternoon, dear guests!
This is my final article on assembling a metal frame with your own hands for an interfloor staircase in my house. Until that moment I had never held a welding machine in my hands, and moreover, this is the first time I come across metal structures.
He collected everything alone, worked on weekends and evenings after work, a total of three weeks, two days of which he devoted to self-study welding.
In previous articles, I described step by step the construction of the project, the layout of the walls and the total cost of the metal, in the same article I will tell you about the complete installation and how much the frame cost me in the end.
Previous articles as they appear:
1. Metal frame project. DIY ladder number 1
2. Projection of the frame onto the walls. DIY ladder # 2
3. The cost of metal for a metal frame. DIY ladder # 3
After all the metal was purchased and painted with a primer-enamel against corrosion, I cut it in accordance with the dimensions of the project.
First of all, the same blanks were made for straight twelve steps (run-in steps were built after the frame was installed in fact):
Further, a plywood template was built with the help of which all 12 steps were brought into geometrically even identical products. After all the corners were set and the diagonals were checked, he welded the seams.
When all the steps were prepared, I started assembling the frame and, first of all, the supporting elements were made from channel # 12 for the winder steps. The channel was attached to the bearing wall with studs by means of a chemical anchor.
Further, the central and side racks of the frame from the 80 * 80 square are exposed, which, to fix the position, are tied by welding to each other and fastened with a 50 mm corner. with channel for winder steps.
The supporting elements of the uprights - "heels" for support on the concrete floor - are cut from a sheet of metal, 3 mm thick. The size of the heel is 15 * 15, to leave room at the edges for an anchor to the floor:
After the racks were already in their places and were leveled, I made the bearing slanting elements for the steps themselves. I also used the 12th channel. And in order not to be mistaken with the angle, I made a template from an inch.
To fasten the stairs to the wooden beam of the second floor, a 50 mm corner strapping is made around the load-bearing floor beam. The corners are welded together with jumpers (strip) and fastened to the beam through the wood grouse 6 mm.
Welding metal near wooden structures is a potential fire place, so I welded pointwise, strongly without overheating the metal and just in case kept a "five" of water nearby, which I still had to use a couple of times
After all the channels were exposed and point-by-point welded, he completely welded all the joints of the structure and proceeded to build the steps.
The first few vertical welds were very difficult for me, in contrast to the horizontal ones. The welding technique is different, so I had to kill an hour of time and practice (of course, it turns out aesthetically not very beautiful, but they will keep it)
At the moment, it remains to clean all the seams, fix the stairs to the floor and re-paint the metal.
The costs were:
Metal + shipping: RUB 18,000
Electrodes: 6 kg * 250 rubles. = RUB 1,500
Chemical anchor: 2 pcs. * 800 rub. = 1 600 RUB
Fasteners (wood grouse + studs): RUB 600
Disc for metal 6 pcs. * 50 rubles. = RUB 300
Primer-enamel: RUB 400
Total: 22 400 rubles.
The welding machine was bought for 7200 rubles, the chameleon mask was 1900 rubles, but I do not include them in the costs, since this is not a business for one day!
If we compare the amount of 22 400 rubles. with the cost offered to me by several companies and private traders (48,000, 60,000, 72,000, etc.), then the payoff is decent, so I study and do everything myself!
I would be glad if the article became useful to you! Thanks for attention!
1. Metal frame project (Article No. 1)
2. Projection of the frame onto the walls (Article No. 2)
3. The cost of metal for a metal frame (Article No. 3)