The new President of the United States Donald Trump is expected to give the order to begin works on building his controversial wall between the US and Mexico today. Buildingspecifier investigates:

Mr Trump is visiting the Department of Homeland Security today, purportedly to order federal funds to be allocated towards the building of the giant wall in question. Yesterday he tweeted:

How big will it be?

Reports of how big the wall will actually be vary, but the length of the border itself is around 1,900 miles in total. Trump himself has said that the wall will cover roughly 1,000 miles, with natural obstacles protecting the remainder of the distance.

In comparison, the Berlin Wall was 96 miles long and the Great Wall of China is 13,000 miles long.

How much will it cost?

There is already some fencing in place between the borders, which cost approximately $2.4 billion to build. Reoports estimate that to building the rest of it would cost between $15-$25bn. THEN there’s maintenance, which is expected to run up to a whopping $700m per annum, according to deputy director of the US Immigration Policy Program at the nonpartisan Migration Policy Institute, Marc Rosenblum.

After offending their neighboring country with racial slurs such as “When Mexico sends its people, they’re not sending their best… They’re sending people that have lots of problems, and they’re bringing those problems with us. They’re bringing drugs. They’re bringing crime. They’re rapists. And some, I assume, are good people”, Donald Trump added further salt to the wound by insisting that Mexico would foot the bill for the construction of his ludicrous wall.

Mexico have repeatedly insisted that they will do no such thing, forcing the President to find alternative methods of payment. Earlier this month, he announced that the wall would instead be paid for initially with a congressionally approved spending bill, which would eventually be reimbursed by Mexico. He has yet to explain how he intends to make that happen.