To be safe aim for a 4 foot minimum extension away from a downspout.
How far extend the end of the gutter.
Place other stakes spaced 8 feet apart in between.
The back edge of the gutter should tuck up behind the dripedge if you have it otherwise the edge of the shingles should extend well over the back half of the gutter so the drips cannot get behind it and rot the fascia board.
Pound in two stakes 4 feet from the house and directly in front of each downspout.
Tie the string to the downspout then stretch it out and around all the stakes.
Let s get into the six best methods we ve found for extending your home s downspouts.
Hold a wooden block flat across the outer end of the connector and tap the block with the hammer to fit the connector onto the end of the existing gutter.
3 measure the distance from the open end.
This one s a popular solution for a few good reasons.