Drive Gates Case Study

driveway_gates

Drive Gates Case Study

We were approached by a customer who required some drive gates at her property in Leeds. The main objective here was not high security but safety as the gates were to be used to prevent children who were playing in the back garden running down the drive and onto the road.

So as to complement the fact that this was a domestic location it was agreed with the customer to have the gates manufactured to a height of 1m and to incorporate some scrolls into the design making them more attractive to the eye.

The gates where also hot dipped galvanised then powder coated traditional black to give then the best protection from the elements.

The property is constructed from Yorkshire Stone which is basically very rough cut sand stone. This meant that the gates would have to be hung from steel posts concreted into the ground rather than being fastened directly into the sand stone walls. The reason for this that sand stone is not an adequate substrate and a good solid fixing would not be achieved. Especially when you take into consideration the weight of the gates and the fact they will be in regular use, exerting a force onto the hinges weakening the fixings through time.

The post used were 75mm square steel box section galvanised and then powder coated. The first task when arriving on site is to decide on the location for the posts. This had been previously discussed with the customer and it was agreed the best place to install them would be close to the front edge of the house across the narrowest point of the drive. This is probably the most important stage of the installation as the positioning of the posts will determine how level and square the gates will hang.

The next stage is to dig through the tarmac drive taking extra care not to damage any pipes or electric cables etc. For a set of 1m high gates we need to allow approx 300mm of depth. Once the holes have been dug the next step is to ensure they are true and vertical, if possible once this is achieved wedge the post at its base in the hole using the debris/stones etc you have just dug out. Place the opposite post in position and ensure they line up and are square to each other. Using a tape measure now check the exact distance between the posts gudgen (hinges) When you are 100% happy with this measurement concrete in the post that is in the hole using post fix ready mix.

Once the mix has been poured in to the hole double check that the post is vertical and level etc. Now leave that post to set and start on the opposite hole when its approx 300mm deep place the post in it and wedge it with debris as before. Now check your measurements again, making any adjustments that are required. Once you are happy pour in the water and add the post fix. It may be necessary to actually provisionally hang the gates from the posts at this stage by sliding them onto the gudgen pins, making sure they are well supported so as not to put any strain on the cement that is setting. This is just to check that the gates line up and meet in the middle and are of equal height and close true without fouling on each other. You made need to lightly tap the posts on the side to create a totally even and level installation. If the gates do not hang level when opened they have a tendency to slowly swing closed on their own accord. Remove the gates from the posts and smooth the concrete at the base of the post to ensue a neat and professional finish. Tidy up any rubble and debris sweep up any post fix and if required wipe any wet cement that may have splashed onto the gate posts with a damp cloth taking care not to knock or move them.

Give the post fix at least half an hour depending on the weather conditions to set. Taking care now locate the gates onto the gudgens fixed to the posts. The gates used on this installation actually had adjustable hinges allowing some adjustment if required. The posts should comfortably hold the weight of the gates but don’t swing them to much or lean on them just yet..

The next stage is to attach the drop pin to one of the gates this basically locks the gates in place when they are closed. A hole is drilled into the drive for the pin to locate into. As an added precaution and to prevent the posts from towing in at the top due to children swinging on them it may be necessary to screw the posts to the wall to create an extra ridged and strong fixing.

The final job is to prevent the gates being taken of the gudgen pins and stolen. This is done by using an “R” clip or piece of steel wire threaded through a hole drilled in the gudgen pin then twisted to prevent it from being removed. Take extra care not to leave any sharp edges that could cause injury. Lastly using black paint obtained from the powder coaters touch up any chips that may have been created whilst carrying out the installation.

Stand back and admire, Job done!

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