How to Hang a Perfect Gallery Wall

TOOL SETS <svg class="icon icon--caret-down" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 19.49 12.16"> Caret Down

COLLABS <svg class="icon icon--caret-down" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 19.49 12.16"> Caret Down

How do I know what type of hardware I should use? <svg class="icon icon--plus" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"> Plus Sign <path d="M12,24a1,1,0,0,1-1-1V13H1a1,1,0,0,1,0-2H11V1a1,1,0,0,1,2,0V11H23a1,1,0,0,1,0,2H13V23A1,1,0,0,1,12,24Z" />

How heavy can my artwork be? <svg class="icon icon--plus" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"> Plus Sign <path d="M12,24a1,1,0,0,1-1-1V13H1a1,1,0,0,1,0-2H11V1a1,1,0,0,1,2,0V11H23a1,1,0,0,1,0,2H13V23A1,1,0,0,1,12,24Z" />

How many pieces can I hang with a kit? <svg class="icon icon--plus" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"> Plus Sign <path d="M12,24a1,1,0,0,1-1-1V13H1a1,1,0,0,1,0-2H11V1a1,1,0,0,1,2,0V11H23a1,1,0,0,1,0,2H13V23A1,1,0,0,1,12,24Z" />