Revenue is measured as the amount of consideration the Company expects to receive in exchange for transferring goods. The Company reports sales revenue, including direct sales, on a net basis, which includes gross revenue adjustments for estimated returns, cash payment discounts based on the satisfaction of outstanding receivables, and volume purchase rebates. The Company’s customer payment terms are typical for our industry; these terms vary by customer and location, as well as by the products purchased.

Regarding direct sales, the Company is the principal of these arrangements and is responsible for fulfilling the promise to provide specific goods to its customers, including product specifications, pricing and modifications prior to delivery. Direct sales as a percent of net sales were 19%, 17% and 15% in each of the years ended December 31, 2018, 2017 and 2016, respectively.

	2018		2017		2016
Millwork	$	400.6	$	381.4	$	364.1
Building Products		365.4		299.0		278.7
Wood Products		73.6		72.8		71.1
Net Sales		839.6		753.2		713.9