I am building wall and my house is 20 feet wide and around 20 feet length for the porch area. Is 14 feet too little or too much to let in/out 2 cars freely?
If possible I want the most optimum length so that the auto gate motor won't wear off so soon due to the weight and length of the gate.

14' quite difficult lar, min 16'......if folding gate better go for 17' as the motor will take about 9" each side

ok, 16' wide and 20" feet length should be able to let 2 car in right?
I intend to use the swing one, more durable.

Mine 15.5ft with folding gate. A bit tough to go in. Luckily my length is long, as long as the car park inside a bit then no prob to park side by side. 17ft will be ideal

Mine 13 1/2 wide. No problem except one car further from the gate has to park slanted a bit. If another 1/2 foot (ie 14 feet) just perfect otherwise 14 1/2 should be ok unless you want to reserve park.

14 feet for main gate with swing gate. 2 feet pillar and balance 3 feet for another small gate for people going in and out without using the main gate that will look better. If you use up all the 20 feet (19 feet actually) it dont look nice. Go round and see others then you know.

some say 14ft, some say 16ft, so can I conclude that 15 feet is good enough?

Still depends on what car u use...
Mine is 16ft with folding gate. I only open one side to drove in. And i have 3ft small gate just to have people get in and out... By total i have 19ft open.. So i can park my car without "park senget2"..
Btw, i only use spectra and my wife kelisa

Depend your cars. If both alphard minimal you need 7.5ft width cleaned one side.

better to have to more than 15 feets....

Of course the bigger the easier. My house 22 feet and I have 13 1/2 feet gate, one other car park senget a bit. I think 14 1/2 will have no problem parking both cars straight with little bit of steering. If you want to go straight in then you need to open up all your 20 feet wide house as gate.

The bigger the gate the heavy it is and heavy duty auto gate needed.

I planned to use DCmoto905, good enough for 15ft gate?

Depend on the weight la bro. Stainles steel is heavy but rod iron is solid heavier but slim. Another aspect is the bearing, get stainless steel ones. Again you got to make sure it is gravity level/balance which depend on kong fu (skill) of installer. If out of balance more unnecessary force is needed and stress on bearing and soon bearing KO and follows by the auto gate arm/motor. These are the thing to look at not just how strong or powerful the arm. That also tell you why some got no problem yrs after yrs and some cant last a year. It is not jsut rain water get into motor

Remember for a swing gate , the bigger the gate the more front space needed to be allocated for the gate outward swing.
Make sure this is taken in to account.

Can 2 Myvis fit nicely through the 14 feet gate?

It also depend how wide the gate can swing. If only 90 degree, can but some difficulties. If both swing 110 degree no problem. This is called maneuverability. Also if the first car simply park over its "lot" space then the 2nd get difficult. That is the first car has to park properly and the 2nd can park simply.

Any one fitted aluminium gate here ?
I was wondering if aluminium gate is lighter, less maintenance and long lasting ?

For a very wide gate, recommended to go for folding gate. Less of a hassle especially if you park outside and your gate swings out.

For 14ft gate width, if your driveway has a minimum 20ft it could be a problem depending on the type of car you drive. My gate is 16ft wide and my driveway is exactly 20ft deep but it still feels a lil tight when parking side by side as there isn't much space to maneuver. The driveway width for my house is only 18ft wide.

Go for at least a 16ft gate and maintain your driveway depth at about 23-25ft and it should not be a problem.

This post has been edited by adrianjc: Jan 23 2013, 07:53 AM

If I get a 15-16ft gate, does it consider too wide for a swing type? Because using folding type it would then take up around 0.5-1ft for the folded gate while at rest and folding are prompt to jam versus swing type, that's why I prefer swing, because even if I park in front of the gate, I can still swing the other half of the gate and only allow a small opening for me to walk in, while being mindful that the swing gate won't hit my car.

This post has been edited by gedebe: Jan 23 2013, 11:17 AM

With a shallow driveway like yours (20ft), it is advisable to have a wider gate.
The side is only be sufficient for the gate pillars (18" each). and the walls.