Existing Asphalt Foundation Outdoor

If you have a levelled (remember the ball will bounce with same accurancy as the foundation is, the turf will not correct any irregularities) asphalt foundation you have four options:

This is a 1.300 kg extra of steel that supports the construction. For outdoor we also, if the place is very windy, recommend supportive legs (up to 16 pcs). This solution is more to consider as temporarily than permanent and is quite expensive (apprx €6,000 for the portable kit and another €10,500 for the supportive legs).

A very economical and easy to do yourself-solution is to cut a 40 cm wide channel/trench (20-40 cm deep) and put tubes for electricity and steel (see photos) and finish with filling the trenches with concrete. This will be a very good long lasting solution and probably much cheaper than buying/installing with portable kit and supportive legs.

One good alternative, especially if you want to move the court to another place, is to put concrete beams on the top and fill the play area with stones/macadam and finish with 4-6mm asphalt (same type of asphalt that you already have). This is a good alternative if your asphalt foundtion not is so levelled, as as it is very difficult to level up and already existing asphalt foundation.

An easy solution is also to put a wall around the court (size apprx 11x21m) and put minimum 100mm armored (or with fiber) concrete. This is little more expensive but the solution you use in countries with more warm/hot climate (as asphalt easily melts in the summer of hot places).