for i joist u201d i joist support 50 may be additionally employed in cases where either the web hole 14 is inadvertently fabricated with dimensions exceeding the corresponding safety standard and or in cases where gravitational loads received by the insert 20 f may require an intermediate load transfer and broader load distribution onto the 1 joist 10 via the i joist support 50 the i joist support 50 may feature attachment holes and a chord rest 54 for a rigid interconnection between i joist support 50 and i joist 10 such that load carrying capacity and or buckling resistance of the i joist 10 is improved gravitational load transfer may be provided from a load rest 27 of the insert 20 f onto a correspondingly shaped central contour 51 of the i joist support 50 in case of a u shaped support 50 the load rest 27 may correspond to a central arc of the central contour 51 as illustrated in fig1 gravitational load transfer may also be provided via attachment pins simultaneously engaging in attachment holes 22 and correspondingly positioned insert alignment holes 53 regardless the exemplary illustration of fig1 and as may be well appreciated by anyone skilled in the art.