How Long Does It Take to Assemble Your Trampoline? The assembling of a trampoline is dependent on the model that you have purchased. Some trampolines can be assembled within an hour while the heavier models can take – as much as – up to three hours.Click to see full answer. Beside this, how long does it take to put up a 14 foot trampoline? Trampoline set up service The process can usually be completed in less than 4 hours, although this could be longer if your trampoline is particularly large or complex to put together.One may also ask, how long does it take to put up a 8ft trampoline? If you have an 8ft trampoline, it will be different from if you have a 14ft trampoline. The bigger the trampoline, the longer it might take since it will have more springs and they might take time to fit. The average time it takes to assemble a trampoline is three to five hours. Also know, is a 14 ft trampoline big? As in previous calculation, 12 ft round trampoline will give you roughly 93 sq ft of jumping area while 14 ft will provide around 133 sq ft. 14 ft trampolines are recommended for teenagers or families with several children, as this is enough to accommodate all of them, if they decide to exercise or play together.How long does it take to put together a 15 ft trampoline?The assembling of a trampoline is dependent on the model that you have purchased. Some trampolines can be assembled within an hour while the heavier models can take – as much as – up to three hours.