Nitro Magnum Snowboards on sale and shipping with freebies from The House Boardshop. The Mens Nitro Magnum is our best selling wide board of all-time. With the insanely light powercore and quick carving progressive sidecut, the Nitro Magnum is no sluggish wide-board. The House Boardshop will rock your new Nitro out within 24 hours of your order Monday-Friday. The House. Since 1982.