Constructurally

The extreme flatness of the ogee renders the arm a tie to the back, and this is, constructurally considered, a most desirable feature, for it unites the fore legs and seat of the chair so securely with the back that it would be impossible to disturb the position of either, and lends most valuable aid in giving security to the entire work.

Source: wiktionary

Two illustrations are given of the Entrance Hall at Althorp, where the Woottons are hung constructurally.

Source: wiktionary

We find that the construction has three distinct planes that are all symmetrical and perpendicular to one another; the horizontal equatorial plane and two vertical planes intersect each other on the north-south polar axis perpendicularly to one another, which perpendicularity is constructurally inherent.

Source: wiktionary