referring now to fig1 - 11 , a ladder 2 interconnected to an offset device 4 is generally shown herein . more specifically , an offset device 4 is shown interconnected to a ladder , either rigidly or selectively , that displaces an upper end 6 of the ladder , while maintaining a preferred angle of the ladder 2 with respect to the ground . a ladder is usually comprised of at least a left structural member 8 , a right structural member 10 , and a plurality of rungs 12 positioned therebetween . generally , a ladder 2 is propped against a vertical surface 14 of a structure 16 , wherein the upper end 6 is in contact with the vertical surface 14 and a lower end 18 is in contact with a generally horizontal surface 20 , such as the ground . one embodiment of the present invention is equipped with an offset device 4 that is adapted to spatially displace the upper end 6 of the ladder 2 in order to provide a user greater access to gutters 22 , roofs 24 , or around overhangs 26 , often found on structures 16 , while maintaining a predetermined safe tilt angle with respect to the horizontal surface 20 . manufacturers of ladders 2 recommend that the angle between the ladder 2 and the horizontal surface 20 , angle γ , be approximately 70 degrees for maximum stability and safety . the offset device 4 may be made of any rigid material , including but not limited to various metals , plastic , or wood . the material should be able to withstand the weight of a person and the weather conditions to which the device will be subjected . preferably , the ladder modification device is made of the same material as the ladder . most ladders are made of a form of aluminum , but one skilled in the art will appreciate that many other materials may be used to achieve the required rigidity and corrosion resistance . referring now to fig1 and 2 , one embodiment of the present invention that employs a rigidly interconnected offset device 4 is shown herein . more specifically , a ladder 2 , which includes at least a left structural member 8 , a right structural member 10 , and a plurality of rungs 12 equally spaced therebetween , is interconnected to the offset device 4 . the offset device 4 includes , among other things , a left structural extension 28 , a right structural extension 30 , transverse support members 32 , vertical surface interface areas 34 , and angled surface interface areas 36 . preferably , the extension members 28 and 30 are rigidly interconnected to the structural members 8 and 10 of the ladder 2 at a predetermined angle α that results in the optimum ladder tilt angle when the ladder 2 is in use . for example , for a tilt angle of 70 degrees , the offset device 4 will be positioned 110 degrees from the ladder . generally , the offset device is welded to the ladder 2 , with or without other structural enhancing means , such as gussets . however , other rigid interconnection methods may be used , such as bolting or screwing . in addition , the desired offset may be integrally manufactured into a ladder 2 in a one - piece design for maximum strength . alternatively , the offset device 4 may be hingedly interconnected to the ladder 2 to allow for selective alterations of the offset angle α . the angle α is , preferably , an obtuse angle and can range from about 91 degrees to 179 degrees . more preferably , the angle α is about 110 degrees . the material of the offset device 4 will partly depend on the method of attachment , corrosion factors , and method of use , for example . preferably , the same material used in construction of the ladder 2 will be used in the construction of the offset device 4 . referring now to fig3 and 4 , another embodiment of the present invention is shown herein that employs a selectively interconnectable offset device 4 . this embodiment of the present invention is intended to be a retrofit option that is adapted to selectively interconnect to traditional ladders 2 , thereby alleviating alterations thereof . as described above , the offset device includes at least a left structural extension 28 , a right structural extension 30 , transverse support members 32 , vertical surface interface areas 34 , and angled surface interface areas 36 . however , in this embodiment of the present invention , the angle α , as described above , is integrated into the two extension members 28 and 30 . the angle α is , preferably , an obtuse angle and can range from about 91 degrees to 179 degrees . more preferably , the angle α is about 100 degrees to 120 degrees . in addition , a stabilizing member 40 may be included . this stabilizing member 40 is designed to selectively interface with the top rung of the ladder 2 in order to constrain the offset device 4 along the length of the ladder 2 . the stabilizing member 40 can take any shape that will allow it to fit over the top rung of the ladder 2 . thus , the stabilizing member 40 can be circular , c - shaped , u - shaped , rectangular , triangular , etc . preferably , the stabilizing member is u - shaped to allow the offset device 4 to be used with a wide variety of ladders 2 and extension ladders , which are traditionally equipped with cylindrically shaped rungs 12 . the extension members 28 and 30 are also attached to the angled surface interface area 36 , which preferably adapted to fit most 90 degree corners of structures . however , any angle may be incorporated into the design , or adapters may be used to customize the area to a desired angle . in one embodiment of the present invention , the angled interface area 36 is interconnected to the extension members 28 and 30 and a transverse member 32 . as shown in fig1 the angled interface is comprised of two segments with each segment having a first end and a second end . the first end of each of the angled interface is interconnected to the pair of extension members 28 and 30 . the second end of each of the angled interface is interconnected to a transverse support member 32 . it should be appreciated that the transverse support member 32 may take any shape so long as the angled interface members 36 can be interconnected thereto . this interconnection may be achieved through various means , including but not limited to , welding , fastening , nailing , screwing , fusing , bolting , or any combination of these means so long as the connection can withstand the various forces that will be placed upon the angled members 36 when in use . referring now to fig4 a , the offset device 4 is shown installed . the extension members 28 and 30 are adapted to fit over the upper portions of the structural members 6 and 10 of the ladder 12 . the extension members 28 and 30 , which are preferably constructed from rectangular tubing or “ c ” channels , are designed to slide down over upper portions of the structural members 6 and 10 until contact is made between the upper portions and the outer internal bend of the extension members 28 and 30 , or until the stabilizing member 40 rests on the top rung of the ladder . referring now to fig5 - 8 , another embodiment of the present invention is shown herein that employs a selective length adjustment . more specifically , the extension members 28 and 30 , as previously described , are adapted to receive an extension device 42 , which is designed to selectively alter the offset of the upper end of the ladder . preferably , the extension device 42 includes at least a left tube 44 and a right tube 46 that are adapted to telescope into larger rectangular tubular members employed by the extension members 28 and 30 . alternatively , the tubular members 28 and 30 may be constructed of “ c ” channels that are adapted to receive the tubular members of the extension device 42 . in addition , a locking mechanism 48 may be employed to selectively secure the extension device 42 at a plurality of lengths and to provide increased safety . the extension device 42 of one embodiment of the present invention includes the left tube 44 member , a right tubular member 46 , a transverse support member 32 therebetween , an angled interface area 36 , and a vertical surface interface area 34 . these components are generally identical as those described above , but are adapted to selectively engage the extension members 28 and 30 of the offset device 4 to provide a range of offsets to accommodate a plurality of working conditions . referring now specifically to fig8 a cross - sectional view of a selectively interconnected extension device 42 is shown herein . more specifically , the extension device 42 is shown surrounded by the extension members 28 and 30 . preferably , the extension members 28 and 30 are constructed from rectangular tubing or “ c ” channels of slightly greater dimensions than those of the extension device 42 in order to provide adjustability while maintaining stability when in use . when in the desired position , the extension device 42 is either locked in place with the locking mechanism or allowed to slide completely into the extension members 28 and 30 until it contacts the inner corner thereof . referring now to fig9 and alternate embodiment of the extension device 42 is shown herein . this embodiment is virtually identical to the embodiment previously described . in addition , feet 50 are added to increase the footprint of the extension device 42 onto the vertical surface to reduce pressure loads on the surface during use , and to provide increased surface area and thus increased frictional resistance to motion . generally , the vertical surface interface area 34 is designed to selectively contact a wall of a structure . by increasing the footprint , the ladder is less susceptible to rocking about an axis generally parallel to the ladder &# 39 ; s structural members . in addition , this embodiment increases the surface area such that loads are distributed more efficiently , thus less likely to cause damage to siding or glass , for example . further , the feet 50 and the angled surface interface area 36 may include a non - slip material 51 , such as rubber , to thus decrease the chance of ladder slippage during use . preferably , the feet 50 are rigidly interconnected to the extension device 42 by welding or bolting , for example . however , a related embodiment of the present invention employs removable feet 56 to facilitate a wider variety of installation options . for example , angled feet may be employed that are more suited to engage a corner of a room . finally , additional supports may be added , such as gussets 54 , to improve stability . referring now to fig1 , a related embodiment of the extension device 42 is shown herein . here a single foot 50 is used to distribute loads and provide increased safety . this embodiment is substantially identical to the previously described embodiment , except only one long foot 50 is employed . thus , this embodiment is not as suited to interface with corners of buildings , for example . in a related embodiment of the present invention the transverse support member 32 and associated structure is omitted . referring now to fig1 , one embodiment of the present invention is shown in use . initially , the invention will be transported to a work site . next , the offset device 30 is selectively interconnected to the ladder 2 . the amount of required offset is then calculated and the extension device 42 is adjusted accordingly . the invention is then selectively interfaced with a vertical surface 14 of a structure 16 and a generally horizontal surface 20 , thus maintaining the desired tilt angle and allowing clear access to gutters , overhangs , roofs , etc . 22 , 26 , 24 . in this figure the embodiment of the present invention that employs an adjustable offset device 42 is shown , however one skilled in the art will appreciate that installation of the other embodiments described herein is similar . to assist in the understanding of the present invention the following list of components and associated numbering found in the drawings is provided herein : component # ladder 2 offset device 4 upper end of ladder 6 left structural member 8 right structural member 10 rung 12 vertical surface 14 structure 16 lower end of ladder 18 horizontal surface 20 gutter 22 roof 24 overhang 26 left structural extension 28 right structural extension 30 transverse support member 32 vertical surface interface area 34 angled surface interface area 36 gusset 38 stabilizing member 40 extension device 42 left tube 44 right tube 46 locking mechanism 48 foot 50 non - slip material 51 weld 52 feet gusset 54 the principles , preferred embodiments , and modes of operation of the present invention have been described in the foregoing specification . the invention which is intended to be protected herein should not , however , be construed as limited to the particular forms disclosed , as these are to be regarded as illustrative rather than restrictive . variations and changes may be made by those skilled in the art without departing from the spirit of the present invention . accordingly , the foregoing best mode of carrying out the invention should be considered exemplary in nature and not as limiting to the scope and spirit of the invention as set forth in the claims . while various embodiments of the present invention have been described in detail , it is apparent that modifications and alterations of those embodiments will occur to those skilled in the art . however , it is to be expressly understood that such modifications and alterations are within the scope and spirit of the present invention , as set forth in the following claims .